Index: trunk/core/units/general/cat_tag_processor.php
===================================================================
diff -u -N -r8535 -r8546
--- trunk/core/units/general/cat_tag_processor.php	(.../cat_tag_processor.php)	(revision 8535)
+++ trunk/core/units/general/cat_tag_processor.php	(.../cat_tag_processor.php)	(revision 8546)
@@ -188,8 +188,13 @@
 			// original id found & greather then zero + show original
 			$display_original = isset($params['display_original']) && $params['display_original'];
 
+			$owner_field = $this->Application->getUnitOption($this->Prefix, 'OwnerField');
+			if (!$owner_field) {
+				$owner_field = 'CreatedById';
+			}
+
 			$object =& $this->getObject($params);
-			$perm_value = $this->PermHelper->ModifyCheckPermission($object->GetDBField('CreatedById'), $object->GetDBField('CategoryId'), $this->Prefix);
+			$perm_value = $this->PermHelper->ModifyCheckPermission($object->GetDBField($owner_field), $object->GetDBField('CategoryId'), $this->Prefix);
 
 			return $display_original && ($perm_value == 1) && $this->Application->GetVar($this->Prefix.'.original_id');
 		}