--- imagecache_ui.module 
+++ imagecache_ui.module 
@@ -43,6 +43,16 @@
     'page arguments' => array('imagecache_ui_preset_form'),
     'access arguments' => array('administer imagecache'),
     'type' => MENU_LOCAL_TASK,
+  );
+
+  $items['admin/build/imagecache/subdomain'] = array(
+    'title'            => 'Subdomain',
+    'description'      => 'Setup for images subdomain',
+    'file'             => 'imagecache_ui.pages.inc',
+    'page callback'    => 'drupal_get_form',
+    'page arguments'   => array('imagecache_ui_subdomain_form'),
+    'access arguments' => array('administer imagecache'),
+    'type'             => MENU_LOCAL_TASK,
   );
 
   $items['admin/build/imagecache/%imagecache_ui_preset'] = array(
@@ -156,6 +166,12 @@
       ),
       'file' => 'imagecache_ui.pages.inc',
     ),
+    'imagecache_ui_subdomain' => array(
+      'arguments' => array(
+        'form' => NULL,
+      ),
+      'file' => 'imagecache_ui.pages.inc',
+    ),
   );
 }