Index: webform.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/webform/webform.module,v
retrieving revision 1.234
diff -u -r1.234 webform.module
--- webform.module	18 Jun 2010 01:55:58 -0000	1.234
+++ webform.module	18 Jun 2010 03:13:13 -0000
@@ -1261,7 +1261,9 @@
     '#page' => $page,
     '#form' => $form,
     '#enabled' => $enabled,
-    '#weight' => field_extra_field_weight('node', $node->type, 'webform'),
+    // TODO: field_extra_field_weight() was removed in Drupal 7 Beta 6. Remove
+    // this conditional after D7 core stabalizes.
+    '#weight' => function_exists('field_extra_field_weight') ? field_extra_field_weight('node', $node->type, 'webform') : 10,
   );
 }