Update to support i18n with InsertNode in Drupal 6.

InsertNode.pages.inc

@@ -12,7 +12,7 @@
  * Function used to replace the [node:...] tags.
  */
 function _InsertNode_replacer($matches) {
-  global $_InsertNode_demote_level;
+  global $_InsertNode_demote_level, $language;
   static $insert_node_count = 0;
   static $node_ids = array();
 
@@ -38,7 +38,12 @@ function _InsertNode_replacer($matches) {
     }
   }
 
-  $node = node_load($nid);
+  // first try with the language to support i18n sites
+  $node = node_load(array('tnid' => $nid, 'language' => $language->language));
+  if (!$node) {
+    // if the load fails with the language, try again without
+    $node = node_load(array('nid' => $nid));
+  }
   if ($nid && node_access('view', $node)) {
     // avoid recursivity
     if (!empty($node_ids[$nid])) {