Index: relativity.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/relativity/relativity.module,v
retrieving revision 1.46.2.7
diff -u -p -r1.46.2.7 relativity.module
--- relativity.module	10 Jul 2009 14:41:43 -0000	1.46.2.7
+++ relativity.module	29 Sep 2009 12:48:59 -0000
@@ -1047,8 +1047,11 @@ function relativity_nodeapi(&$node, $op,
   if (is_numeric(arg(4))) {
     //check if parent node actually exists
     if (db_result(db_query("SELECT COUNT(nid) FROM {node} WHERE nid=%d", arg(4)))) {
-      if (array_key_exists(arg(2), relativity_node_list())) {
-        $node->parent_node = arg(4);
+      foreach (relativity_node_list() as $type => $name) {
+        $type = str_replace('_', '-', $type);        //need to change _ to -
+        if($type == arg(2)) {
+          $node->parent_node = arg(4);
+        }
       }
     }
   }