diff --git a/modules/comment.module b/modules/comment.module
index a00145082677e0773973aba7aca5ac647a5fe740..7aba642296e192cace246766500dd881e09a1e83 100644
--- a/modules/comment.module
+++ b/modules/comment.module
@@ -170,7 +170,7 @@ function comment_form($edit) {
 function comment_edit($cid) {
   global $user;
 
-  $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $cid));
+  $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $cid));
 
   if (comment_access("edit", $comment)) {
     comment_preview(object2array($comment));
@@ -187,7 +187,7 @@ function comment_reply($pid, $nid) {
     */
 
     if ($pid) {
-      $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $pid));
+      $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $pid));
       comment_view($comment);
     }
     else {
@@ -238,7 +238,7 @@ function comment_preview($edit) {
   theme("box", t("Reply"), comment_form($edit));
 
   if ($edit["pid"]) {
-    $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $edit["pid"]));
+    $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $edit["pid"]));
     comment_view($comment);
   }
   else {
@@ -481,7 +481,7 @@ function comment_render($node, $cid = 0) {
       print "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
       print form_hidden("nid", $nid);
 
-      $result = db_query("SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0 GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users", $cid);
+      $result = db_query("SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0 GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users", $cid);
 
       if ($comment = db_fetch_object($result)) {
         comment_view($comment, comment_links($comment));
@@ -498,7 +498,7 @@ function comment_render($node, $cid = 0) {
       ** Multiple comments view
       */
 
-      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = '". check_query($nid) ."' AND c.status = 0";
+      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = '". check_query($nid) ."' AND c.status = 0";
 
       $query .= " GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users";
 
@@ -809,7 +809,7 @@ function comment_node_link($node) {
     ** Edit comments:
     */
 
-    $result = db_query("SELECT c.cid, c.subject, u.uid, u.name FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE nid = %d AND c.status = 0 ORDER BY c.timestamp", $node->nid);
+    $result = db_query("SELECT c.cid, c.subject, u.uid, u.name FROM {comments} c LEFT JOIN {users} u ON u.uid = c.uid WHERE nid = %d AND c.status = 0 ORDER BY c.timestamp", $node->nid);
 
 
     $header = array(t("title"), t("author"), array("data" => t("operations"), "colspan" => 3));
@@ -829,7 +829,7 @@ function comment_node_link($node) {
 
 function comment_admin_edit($id) {
 
-  $result = db_query("SELECT c.*, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $id);
+  $result = db_query("SELECT c.*, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $id);
   $comment = db_fetch_object($result);
 
   // if a comment is "deleted", it's deleted
@@ -872,7 +872,7 @@ function comment_save($id, $edit) {
 
 function comment_admin_overview($status = 0) {
 
-  $result = pager_query("SELECT c.*, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE c.status = '". check_query($status). "' ORDER BY c.timestamp DESC",  50);
+  $result = pager_query("SELECT c.*, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON u.uid = c.uid WHERE c.status = '". check_query($status). "' ORDER BY c.timestamp DESC",  50);
 
   $header = array(t("subject"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));
   while ($comment = db_fetch_object($result)) {
@@ -1493,7 +1493,7 @@ function comment_search($keys) {
   ** identifier which is currently used byt the comment module.
   */
 
-  $find = do_search(array("keys" => $keys, "type" => "comment", "select" => "select s.lno as lno, c.nid as nid, c.subject as title, c.timestamp as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE s.lno = c.cid AND s.type = 'comment' AND c.status = 0 AND s.word like '%'"));
+  $find = do_search(array("keys" => $keys, "type" => "comment", "select" => "select s.lno as lno, c.nid as nid, c.subject as title, c.timestamp as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE s.lno = c.cid AND s.type = 'comment' AND c.status = 0 AND s.word like '%'"));
 
   return $find;
 }
diff --git a/modules/comment/comment.module b/modules/comment/comment.module
index a00145082677e0773973aba7aca5ac647a5fe740..7aba642296e192cace246766500dd881e09a1e83 100644
--- a/modules/comment/comment.module
+++ b/modules/comment/comment.module
@@ -170,7 +170,7 @@ function comment_form($edit) {
 function comment_edit($cid) {
   global $user;
 
-  $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $cid));
+  $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $cid));
 
   if (comment_access("edit", $comment)) {
     comment_preview(object2array($comment));
@@ -187,7 +187,7 @@ function comment_reply($pid, $nid) {
     */
 
     if ($pid) {
-      $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $pid));
+      $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $pid));
       comment_view($comment);
     }
     else {
@@ -238,7 +238,7 @@ function comment_preview($edit) {
   theme("box", t("Reply"), comment_form($edit));
 
   if ($edit["pid"]) {
-    $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $edit["pid"]));
+    $comment = db_fetch_object(db_query("SELECT c.*, u.uid, u.name, u.data FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0", $edit["pid"]));
     comment_view($comment);
   }
   else {
@@ -481,7 +481,7 @@ function comment_render($node, $cid = 0) {
       print "<form method=\"post\" action=\"". url("comment") ."\"><div>\n";
       print form_hidden("nid", $nid);
 
-      $result = db_query("SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0 GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users", $cid);
+      $result = db_query("SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = 0 GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users", $cid);
 
       if ($comment = db_fetch_object($result)) {
         comment_view($comment, comment_links($comment));
@@ -498,7 +498,7 @@ function comment_render($node, $cid = 0) {
       ** Multiple comments view
       */
 
-      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = '". check_query($nid) ."' AND c.status = 0";
+      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = '". check_query($nid) ."' AND c.status = 0";
 
       $query .= " GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.timestamp, u.uid, u.name, u.data, c.score, c.users";
 
@@ -809,7 +809,7 @@ function comment_node_link($node) {
     ** Edit comments:
     */
 
-    $result = db_query("SELECT c.cid, c.subject, u.uid, u.name FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE nid = %d AND c.status = 0 ORDER BY c.timestamp", $node->nid);
+    $result = db_query("SELECT c.cid, c.subject, u.uid, u.name FROM {comments} c LEFT JOIN {users} u ON u.uid = c.uid WHERE nid = %d AND c.status = 0 ORDER BY c.timestamp", $node->nid);
 
 
     $header = array(t("title"), t("author"), array("data" => t("operations"), "colspan" => 3));
@@ -829,7 +829,7 @@ function comment_node_link($node) {
 
 function comment_admin_edit($id) {
 
-  $result = db_query("SELECT c.*, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $id);
+  $result = db_query("SELECT c.*, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status != 2", $id);
   $comment = db_fetch_object($result);
 
   // if a comment is "deleted", it's deleted
@@ -872,7 +872,7 @@ function comment_save($id, $edit) {
 
 function comment_admin_overview($status = 0) {
 
-  $result = pager_query("SELECT c.*, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE c.status = '". check_query($status). "' ORDER BY c.timestamp DESC",  50);
+  $result = pager_query("SELECT c.*, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON u.uid = c.uid WHERE c.status = '". check_query($status). "' ORDER BY c.timestamp DESC",  50);
 
   $header = array(t("subject"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));
   while ($comment = db_fetch_object($result)) {
@@ -1493,7 +1493,7 @@ function comment_search($keys) {
   ** identifier which is currently used byt the comment module.
   */
 
-  $find = do_search(array("keys" => $keys, "type" => "comment", "select" => "select s.lno as lno, c.nid as nid, c.subject as title, c.timestamp as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE s.lno = c.cid AND s.type = 'comment' AND c.status = 0 AND s.word like '%'"));
+  $find = do_search(array("keys" => $keys, "type" => "comment", "select" => "select s.lno as lno, c.nid as nid, c.subject as title, c.timestamp as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE s.lno = c.cid AND s.type = 'comment' AND c.status = 0 AND s.word like '%'"));
 
   return $find;
 }
diff --git a/modules/forum.module b/modules/forum.module
index 6d54c2d40f77fcc91fd6c8444e18a147d5ab3d34..e4a637ce9488b60f91f7bd1a4c83d20dda285fea 100644
--- a/modules/forum.module
+++ b/modules/forum.module
@@ -86,10 +86,10 @@ function forum_block($op = "list", $delta = 0) {
 
       if (empty($cache)) {
         unset($items);
-        $content = node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name, GREATEST(n.created, MAX(c.timestamp)) AS sort FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' AND n.nid = f.nid AND n.status = 1 GROUP BY n.nid, n.title, n.created, u.uid, u.name ORDER BY sort DESC", 0, variable_get("forum_block_num", "5")), t("Active forum topics:"));
+        $content = node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name, GREATEST(n.created, MAX(c.timestamp)) AS sort FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' AND n.nid = f.nid AND n.status = 1 GROUP BY n.nid, n.title, n.created, u.uid, u.name ORDER BY sort DESC", 0, variable_get("forum_block_num", "5")), t("Active forum topics:"));
 
         unset ($items);
-        $content .= node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' ORDER BY n.nid DESC", 0, variable_get("forum_block_num", "5")), t("New forum topics:"));
+        $content .= node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' ORDER BY n.nid DESC", 0, variable_get("forum_block_num", "5")), t("New forum topics:"));
 
         if ($content) {
           $content .= "<div id=\"forum_more\" style=\"text-align: right;\">". l(t("more"), "forum", array("title" => t("Read the latest forum topics."))) ."</div>";
@@ -280,7 +280,7 @@ function _forum_last_comment($nid) {
 }
 
 function _forum_last_reply($nid) {
-  $value = db_fetch_object(db_query_range("SELECT c.timestamp, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.timestamp DESC", $nid, 0, 1));
+  $value = db_fetch_object(db_query_range("SELECT c.timestamp, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.timestamp DESC", $nid, 0, 1));
   return $value;
 }
 
@@ -369,9 +369,9 @@ function _forum_topics_read($uid) {
 }
 
 function _forum_last_post($term) {
-  $topic = db_fetch_object(db_query_range("SELECT n.nid, n.created AS timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {users} u ON n.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 ORDER BY timestamp DESC", $term, 0, 1));
+  $topic = db_fetch_object(db_query_range("SELECT n.nid, n.created AS timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 ORDER BY timestamp DESC", $term, 0, 1));
 
-  $reply = db_fetch_object(db_query_range("SELECT n.nid, c.timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON c.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 AND c.status = 0 ORDER BY c.timestamp DESC", $term, 0, 1));
+  $reply = db_fetch_object(db_query_range("SELECT n.nid, c.timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON c.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 AND c.status = 0 ORDER BY c.timestamp DESC", $term, 0, 1));
 
   $value = ($topic->timestamp > $reply->timestamp) ? $topic : $reply;
 
@@ -387,7 +387,7 @@ function forum_get_topics($tid, $sortby, $forum_per_page) {
   $sql_sortby = _forum_get_topic_order($sortby);
 
   // show topics with the correct tid, or in the forum but with shadow = 1
-  $sql = "SELECT n.nid, n.title, u.name AS name, u.uid AS uid, n.created AS timestamp, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments, f.icon, n.comment AS comment_mode, f.tid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {forum} f ON n.nid = f.nid WHERE n.nid = r.nid AND ((r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum' GROUP BY n.nid, n.title, u.name, u.uid, n.created, n.comment, f.tid, f.icon ORDER BY $sql_sortby";
+  $sql = "SELECT n.nid, n.title, u.name AS name, u.uid AS uid, n.created AS timestamp, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments, f.icon, n.comment AS comment_mode, f.tid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {forum} f ON n.nid = f.nid WHERE n.nid = r.nid AND ((r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum' GROUP BY n.nid, n.title, u.name, u.uid, n.created, n.comment, f.tid, f.icon ORDER BY $sql_sortby";
 
   $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {term_node} r ON n.nid = r.nid WHERE n.nid = r.nid AND ( (r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum'";
 
diff --git a/modules/forum/forum.module b/modules/forum/forum.module
index 6d54c2d40f77fcc91fd6c8444e18a147d5ab3d34..e4a637ce9488b60f91f7bd1a4c83d20dda285fea 100644
--- a/modules/forum/forum.module
+++ b/modules/forum/forum.module
@@ -86,10 +86,10 @@ function forum_block($op = "list", $delta = 0) {
 
       if (empty($cache)) {
         unset($items);
-        $content = node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name, GREATEST(n.created, MAX(c.timestamp)) AS sort FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' AND n.nid = f.nid AND n.status = 1 GROUP BY n.nid, n.title, n.created, u.uid, u.name ORDER BY sort DESC", 0, variable_get("forum_block_num", "5")), t("Active forum topics:"));
+        $content = node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name, GREATEST(n.created, MAX(c.timestamp)) AS sort FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' AND n.nid = f.nid AND n.status = 1 GROUP BY n.nid, n.title, n.created, u.uid, u.name ORDER BY sort DESC", 0, variable_get("forum_block_num", "5")), t("Active forum topics:"));
 
         unset ($items);
-        $content .= node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' ORDER BY n.nid DESC", 0, variable_get("forum_block_num", "5")), t("New forum topics:"));
+        $content .= node_title_list(db_query_range("SELECT n.nid, n.title, u.uid, u.name FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.type = 'forum' ORDER BY n.nid DESC", 0, variable_get("forum_block_num", "5")), t("New forum topics:"));
 
         if ($content) {
           $content .= "<div id=\"forum_more\" style=\"text-align: right;\">". l(t("more"), "forum", array("title" => t("Read the latest forum topics."))) ."</div>";
@@ -280,7 +280,7 @@ function _forum_last_comment($nid) {
 }
 
 function _forum_last_reply($nid) {
-  $value = db_fetch_object(db_query_range("SELECT c.timestamp, u.name, u.uid FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.timestamp DESC", $nid, 0, 1));
+  $value = db_fetch_object(db_query_range("SELECT c.timestamp, u.name, u.uid FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.timestamp DESC", $nid, 0, 1));
   return $value;
 }
 
@@ -369,9 +369,9 @@ function _forum_topics_read($uid) {
 }
 
 function _forum_last_post($term) {
-  $topic = db_fetch_object(db_query_range("SELECT n.nid, n.created AS timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {users} u ON n.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 ORDER BY timestamp DESC", $term, 0, 1));
+  $topic = db_fetch_object(db_query_range("SELECT n.nid, n.created AS timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 ORDER BY timestamp DESC", $term, 0, 1));
 
-  $reply = db_fetch_object(db_query_range("SELECT n.nid, c.timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON c.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 AND c.status = 0 ORDER BY c.timestamp DESC", $term, 0, 1));
+  $reply = db_fetch_object(db_query_range("SELECT n.nid, c.timestamp, u.name AS name, u.uid AS uid FROM {forum} f INNER JOIN {node} n ON n.nid = f.nid INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON c.uid = u.uid WHERE f.tid = %d AND n.nid = f.nid AND n.type = 'forum' AND n.status = 1 AND c.status = 0 ORDER BY c.timestamp DESC", $term, 0, 1));
 
   $value = ($topic->timestamp > $reply->timestamp) ? $topic : $reply;
 
@@ -387,7 +387,7 @@ function forum_get_topics($tid, $sortby, $forum_per_page) {
   $sql_sortby = _forum_get_topic_order($sortby);
 
   // show topics with the correct tid, or in the forum but with shadow = 1
-  $sql = "SELECT n.nid, n.title, u.name AS name, u.uid AS uid, n.created AS timestamp, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments, f.icon, n.comment AS comment_mode, f.tid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {forum} f ON n.nid = f.nid WHERE n.nid = r.nid AND ((r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum' GROUP BY n.nid, n.title, u.name, u.uid, n.created, n.comment, f.tid, f.icon ORDER BY $sql_sortby";
+  $sql = "SELECT n.nid, n.title, u.name AS name, u.uid AS uid, n.created AS timestamp, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments, f.icon, n.comment AS comment_mode, f.tid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {forum} f ON n.nid = f.nid WHERE n.nid = r.nid AND ((r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum' GROUP BY n.nid, n.title, u.name, u.uid, n.created, n.comment, f.tid, f.icon ORDER BY $sql_sortby";
 
   $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {forum} f ON n.nid = f.nid INNER JOIN {term_node} r ON n.nid = r.nid WHERE n.nid = r.nid AND ( (r.tid = '".check_query($tid)."' AND f.shadow = 1) OR f.tid = '".check_query($tid)."') AND n.status = 1 AND n.type = 'forum'";
 
diff --git a/modules/node.module b/modules/node.module
index c2f9ea35add9b9dce9635691ab46d3519fcb9cb0..dfdff21ec9c8ba2935a0d354c6644183b9446ac5 100644
--- a/modules/node.module
+++ b/modules/node.module
@@ -235,7 +235,7 @@ function node_load($conditions, $revision = -1) {
   ** Retrieve the node:
   */
 
-  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM {node} n INNER JOIN {users} u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));
+  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM {node} n LEFT JOIN {users} u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));
 
   /*
   ** Unserialize the revisions field:
@@ -460,7 +460,7 @@ function node_search($keys) {
   // The select must always provide the following fields - lno, title,
   // created, uid, name, count
   //
-  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
+  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {node} n LEFT JOIN {users} u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
 
   return $find;
 }
@@ -598,7 +598,7 @@ function node_admin_nodes() {
   $query = arg(3);
   $queries = array("ORDER BY n.changed DESC", "WHERE n.status = 0 OR n.moderate = 1 ORDER BY n.changed DESC");
 
-  $result = pager_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid ". $queries[$query ? $query : 0], 50);
+  $result = pager_query("SELECT n.*, u.name, u.uid FROM {node} n LEFT JOIN {users} u ON n.uid = u.uid ". $queries[$query ? $query : 0], 50);
 
   $header = array(t("title"), t("type"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));
 
diff --git a/modules/node/node.module b/modules/node/node.module
index c2f9ea35add9b9dce9635691ab46d3519fcb9cb0..dfdff21ec9c8ba2935a0d354c6644183b9446ac5 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -235,7 +235,7 @@ function node_load($conditions, $revision = -1) {
   ** Retrieve the node:
   */
 
-  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM {node} n INNER JOIN {users} u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));
+  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM {node} n LEFT JOIN {users} u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));
 
   /*
   ** Unserialize the revisions field:
@@ -460,7 +460,7 @@ function node_search($keys) {
   // The select must always provide the following fields - lno, title,
   // created, uid, name, count
   //
-  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
+  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {node} n LEFT JOIN {users} u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
 
   return $find;
 }
@@ -598,7 +598,7 @@ function node_admin_nodes() {
   $query = arg(3);
   $queries = array("ORDER BY n.changed DESC", "WHERE n.status = 0 OR n.moderate = 1 ORDER BY n.changed DESC");
 
-  $result = pager_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid ". $queries[$query ? $query : 0], 50);
+  $result = pager_query("SELECT n.*, u.name, u.uid FROM {node} n LEFT JOIN {users} u ON n.uid = u.uid ". $queries[$query ? $query : 0], 50);
 
   $header = array(t("title"), t("type"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));
 
diff --git a/modules/queue.module b/modules/queue.module
index 6617cbb18b11ae294f21efb301ba2a1aaf3c0ec3..ec333594e9493e3888f713855487462a7fa3185c 100644
--- a/modules/queue.module
+++ b/modules/queue.module
@@ -88,7 +88,7 @@ function queue_vote($node, $vote) {
 function queue_overview() {
   global $user;
 
-  $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE n.moderate = 1");
+  $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n LEFT JOIN {users} u ON n.uid = u.uid WHERE n.moderate = 1");
 
   $output .= "<table border=\"0\" cellspacing=\"4\" cellpadding=\"4\">";
   $output .= " <tr><th>". t("Subject") ."</th><th>". t("Author") ."</th><th>". t("Type") ."</th><th>". t("Score") ."</th></tr>";
diff --git a/modules/statistics.module b/modules/statistics.module
index 65c2bf58279aa3701eca0aa7a2b9b6b3896fb8f6..5881b902eb794bf261698ec0465d9a3889679c9c 100644
--- a/modules/statistics.module
+++ b/modules/statistics.module
@@ -682,7 +682,7 @@ function statistics_display_online_block() {
 /* Display linked title based on field name */
 function statistics_title_list($dbfield, $dbrows) {
   /* valid dbfields: totalcount, daycount, timestamp */
-  return db_query_range("SELECT s.nid, n.title, u.uid, u.name FROM {statistics} s INNER JOIN {node} n ON s.nid = n.nid INNER JOIN {users} u ON n.uid = u.uid WHERE %s <> '0' AND n.status = 1 ORDER BY %s DESC", "s.". $dbfield, "s.". $dbfield, 0, $dbrows);
+  return db_query_range("SELECT s.nid, n.title, u.uid, u.name FROM {statistics} s INNER JOIN {node} n ON s.nid = n.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE %s <> '0' AND n.status = 1 ORDER BY %s DESC", "s.". $dbfield, "s.". $dbfield, 0, $dbrows);
 }
 
 
diff --git a/modules/statistics/statistics.module b/modules/statistics/statistics.module
index 65c2bf58279aa3701eca0aa7a2b9b6b3896fb8f6..5881b902eb794bf261698ec0465d9a3889679c9c 100644
--- a/modules/statistics/statistics.module
+++ b/modules/statistics/statistics.module
@@ -682,7 +682,7 @@ function statistics_display_online_block() {
 /* Display linked title based on field name */
 function statistics_title_list($dbfield, $dbrows) {
   /* valid dbfields: totalcount, daycount, timestamp */
-  return db_query_range("SELECT s.nid, n.title, u.uid, u.name FROM {statistics} s INNER JOIN {node} n ON s.nid = n.nid INNER JOIN {users} u ON n.uid = u.uid WHERE %s <> '0' AND n.status = 1 ORDER BY %s DESC", "s.". $dbfield, "s.". $dbfield, 0, $dbrows);
+  return db_query_range("SELECT s.nid, n.title, u.uid, u.name FROM {statistics} s INNER JOIN {node} n ON s.nid = n.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE %s <> '0' AND n.status = 1 ORDER BY %s DESC", "s.". $dbfield, "s.". $dbfield, 0, $dbrows);
 }
 
 
diff --git a/modules/taxonomy.module b/modules/taxonomy.module
index bf1636187950f999d7d9ec14a0f1f81c1327fbe1..2f854724085de48a46ee6be9641d7d676f308d71 100644
--- a/modules/taxonomy.module
+++ b/modules/taxonomy.module
@@ -660,11 +660,11 @@ function taxonomy_select_nodes($taxonomy, $pager = 1) {
 
   if ($taxonomy->str_tids) {
     if ($taxonomy->operator == "or") {
-      $sql = "SELECT DISTINCT(n.nid), n.title, n.type, n.created, n.changed, n.uid, n.static, n.created, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' ORDER BY static DESC, created DESC";
-      $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1'";
+      $sql = "SELECT DISTINCT(n.nid), n.title, n.type, n.created, n.changed, n.uid, n.static, n.created, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' ORDER BY static DESC, created DESC";
+      $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1'";
     }
     else {
-      $sql = "SELECT n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name HAVING COUNT(n.nid) = ".count($taxonomy->tids)." ORDER BY static DESC, created DESC";
+      $sql = "SELECT n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name HAVING COUNT(n.nid) = ".count($taxonomy->tids)." ORDER BY static DESC, created DESC";
 
       // Special trick as we could not find anything better:
       $count = db_num_rows(db_query("SELECT n.nid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid HAVING COUNT(n.nid) = ". count($taxonomy->tids)));
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index bf1636187950f999d7d9ec14a0f1f81c1327fbe1..2f854724085de48a46ee6be9641d7d676f308d71 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -660,11 +660,11 @@ function taxonomy_select_nodes($taxonomy, $pager = 1) {
 
   if ($taxonomy->str_tids) {
     if ($taxonomy->operator == "or") {
-      $sql = "SELECT DISTINCT(n.nid), n.title, n.type, n.created, n.changed, n.uid, n.static, n.created, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' ORDER BY static DESC, created DESC";
-      $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1'";
+      $sql = "SELECT DISTINCT(n.nid), n.title, n.type, n.created, n.changed, n.uid, n.static, n.created, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' ORDER BY static DESC, created DESC";
+      $sql_count = "SELECT COUNT(DISTINCT(n.nid)) FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1'";
     }
     else {
-      $sql = "SELECT n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid INNER JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name HAVING COUNT(n.nid) = ".count($taxonomy->tids)." ORDER BY static DESC, created DESC";
+      $sql = "SELECT n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid, n.title, n.type, n.created, n.changed, n.uid, u.name HAVING COUNT(n.nid) = ".count($taxonomy->tids)." ORDER BY static DESC, created DESC";
 
       // Special trick as we could not find anything better:
       $count = db_num_rows(db_query("SELECT n.nid FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid WHERE r.tid IN ($taxonomy->str_tids) AND n.status = '1' GROUP BY n.nid HAVING COUNT(n.nid) = ". count($taxonomy->tids)));
diff --git a/modules/title.module b/modules/title.module
index 6aff7405ecdb8b0d8fa7ebac72a0e985f6f566b7..b1281a7522f9ee4211c4a9295ba127c251d90c77 100644
--- a/modules/title.module
+++ b/modules/title.module
@@ -10,11 +10,11 @@ function title_page() {
   if (user_access("access content")) {
 
     $title = urldecode(arg(1));
-    $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE n.title = '%s' AND n.status = 1 ORDER BY n.created DESC", $title);
+    $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n LEFT JOIN {users} u ON n.uid = u.uid WHERE n.title = '%s' AND n.status = 1 ORDER BY n.created DESC", $title);
 
     if (db_num_rows($result) == 0) {
       // No node with exact title found, try substring.
-      $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE n.title LIKE '%". check_query($title). "%' AND n.status = 1 ORDER BY n.created DESC");
+      $result = db_query("SELECT n.*, u.name, u.uid FROM {node} n LEFT JOIN {users} u ON n.uid = u.uid WHERE n.title LIKE '%". check_query($title). "%' AND n.status = 1 ORDER BY n.created DESC");
     }
 
     if (db_num_rows($result) == 0 && module_exist("search")) {
diff --git a/modules/tracker.module b/modules/tracker.module
index f0b5f8153ba60a4f93dfb45f028a2ac57f16e0f4..c6fa4bdc452986c140d47c863bd12f25149bf8d0 100644
--- a/modules/tracker.module
+++ b/modules/tracker.module
@@ -25,20 +25,20 @@ function tracker_link($type) {
 function tracker_posts($id = 0) {
 
   if ($id) {
-    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.uid = '". check_query($id) ."' AND n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1 AND uid = '". check_query($id) ."'");
+    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.uid = '". check_query($id) ."' AND n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1 AND uid = '". check_query($id) ."'");
   }
   else {
-    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1");
+    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1");
   }
 
   $header = array(t("Type"), t("Title"), t("Author"));
 
   while ($node = db_fetch_object($sresult)) {
     if ($id) {
-      $cresult = db_query("SELECT c.*, u.name FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.uid = %d AND c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $id, $node->nid);
+      $cresult = db_query("SELECT c.*, u.name FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.uid = %d AND c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $id, $node->nid);
     }
     else {
-      $cresult = db_query("SELECT c.*, u.name FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $node->nid);
+      $cresult = db_query("SELECT c.*, u.name FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $node->nid);
     }
 
     $type = ucfirst(module_invoke($node->type, "node", "name"));
diff --git a/modules/tracker/tracker.module b/modules/tracker/tracker.module
index f0b5f8153ba60a4f93dfb45f028a2ac57f16e0f4..c6fa4bdc452986c140d47c863bd12f25149bf8d0 100644
--- a/modules/tracker/tracker.module
+++ b/modules/tracker/tracker.module
@@ -25,20 +25,20 @@ function tracker_link($type) {
 function tracker_posts($id = 0) {
 
   if ($id) {
-    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.uid = '". check_query($id) ."' AND n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1 AND uid = '". check_query($id) ."'");
+    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.uid = '". check_query($id) ."' AND n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1 AND uid = '". check_query($id) ."'");
   }
   else {
-    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid INNER JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1");
+    $sresult = pager_query("SELECT n.nid, n.title, n.type, n.changed, n.uid, u.name, MAX(GREATEST(n.changed, c.timestamp)) AS last_activity FROM {node} n INNER JOIN {comments} c ON n.nid = c.nid LEFT JOIN {users} u ON n.uid = u.uid WHERE n.status = 1 GROUP BY n.nid, n.title, n.type, n.changed, n.uid, u.name ORDER BY last_activity DESC", 10, 0, "SELECT COUNT(nid) FROM {node} WHERE status = 1");
   }
 
   $header = array(t("Type"), t("Title"), t("Author"));
 
   while ($node = db_fetch_object($sresult)) {
     if ($id) {
-      $cresult = db_query("SELECT c.*, u.name FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.uid = %d AND c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $id, $node->nid);
+      $cresult = db_query("SELECT c.*, u.name FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.uid = %d AND c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $id, $node->nid);
     }
     else {
-      $cresult = db_query("SELECT c.*, u.name FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $node->nid);
+      $cresult = db_query("SELECT c.*, u.name FROM {comments} c LEFT JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = 0 ORDER BY c.cid DESC", $node->nid);
     }
 
     $type = ucfirst(module_invoke($node->type, "node", "name"));
diff --git a/modules/watchdog.module b/modules/watchdog.module
index 71c7b5e136066a07194858bb43773efb53ee9125..5306fac3727acfc528765570442a6cca1c8ad5bc 100644
--- a/modules/watchdog.module
+++ b/modules/watchdog.module
@@ -53,7 +53,7 @@ function watchdog_overview($type) {
   $color = array("user" => "#FFEEAA", "message" => "#FFFFFF", "special" => "#A49FFF", "warning" => "#FFAA22", "httpd" => "#99DD99", "error" => "#EE4C4C");
   $query = array("user" => "WHERE type = 'user'", "regular" => "WHERE type = 'message'", "special" => "WHERE type = 'special'", "warning" => "WHERE type = 'warning'", "error" => "WHERE type = 'error'", "httpd" => "WHERE type = 'httpd'", "actions" => "WHERE link != ''");
 
-  $result = pager_query("SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid ". ($type ? $query[$type] : "") ." ORDER BY w.timestamp DESC", 50);
+  $result = pager_query("SELECT w.*, u.name, u.uid FROM {watchdog} w LEFT JOIN {users} u ON w.uid = u.uid ". ($type ? $query[$type] : "") ." ORDER BY w.timestamp DESC", 50);
 
   while ($watchdog = db_fetch_object($result)) {
     if ($background = $color[$watchdog->type]) {
@@ -72,7 +72,7 @@ function watchdog_overview($type) {
 
 function watchdog_view($id) {
 
-  $result = db_query("SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid WHERE w.wid = %d", $id);
+  $result = db_query("SELECT w.*, u.name, u.uid FROM {watchdog} w LEFT JOIN {users} u ON w.uid = u.uid WHERE w.wid = %d", $id);
 
   if ($watchdog = db_fetch_object($result)) {
     $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
diff --git a/modules/watchdog/watchdog.module b/modules/watchdog/watchdog.module
index 71c7b5e136066a07194858bb43773efb53ee9125..5306fac3727acfc528765570442a6cca1c8ad5bc 100644
--- a/modules/watchdog/watchdog.module
+++ b/modules/watchdog/watchdog.module
@@ -53,7 +53,7 @@ function watchdog_overview($type) {
   $color = array("user" => "#FFEEAA", "message" => "#FFFFFF", "special" => "#A49FFF", "warning" => "#FFAA22", "httpd" => "#99DD99", "error" => "#EE4C4C");
   $query = array("user" => "WHERE type = 'user'", "regular" => "WHERE type = 'message'", "special" => "WHERE type = 'special'", "warning" => "WHERE type = 'warning'", "error" => "WHERE type = 'error'", "httpd" => "WHERE type = 'httpd'", "actions" => "WHERE link != ''");
 
-  $result = pager_query("SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid ". ($type ? $query[$type] : "") ." ORDER BY w.timestamp DESC", 50);
+  $result = pager_query("SELECT w.*, u.name, u.uid FROM {watchdog} w LEFT JOIN {users} u ON w.uid = u.uid ". ($type ? $query[$type] : "") ." ORDER BY w.timestamp DESC", 50);
 
   while ($watchdog = db_fetch_object($result)) {
     if ($background = $color[$watchdog->type]) {
@@ -72,7 +72,7 @@ function watchdog_overview($type) {
 
 function watchdog_view($id) {
 
-  $result = db_query("SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid WHERE w.wid = %d", $id);
+  $result = db_query("SELECT w.*, u.name, u.uid FROM {watchdog} w LEFT JOIN {users} u ON w.uid = u.uid WHERE w.wid = %d", $id);
 
   if ($watchdog = db_fetch_object($result)) {
     $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";