--- includes/theme.inc.orig	2008-09-15 17:43:16.000000000 +1000
+++ includes/theme.inc	2008-09-15 17:43:51.000000000 +1000
@@ -8,7 +8,7 @@
  * The theme system allows for nearly all output of the Drupal system to be
  * customized by user themes.
  *
- * @see <a href="http://drupal.org/node/253">Theme system</a>
+ * @see <a href="http://drupal.org/node/509">Theme developer's guide</a>
  * @see themeable
  */