--- cck_address.module.old	2007-06-25 10:04:30.000000000 -0600
+++ cck_address.module	2007-06-25 10:01:02.000000000 -0600
@@ -491,7 +491,11 @@ function cck_address_widget($op, &$node,
         '#prefix' => '<div class="cck-address-city">',
         '#suffix' => '</div>',
       );
-            
+      
+      if ($items[0]['zip'] == 0){
+        unset($items[0]['zip']);
+      }
+      
       $form[$field['field_name']][0]['zip'] = array(
         '#type' => 'textfield',
         '#title' => t('ZIP'),