In order to get the additional feature of drupal there was a patch released by mattman (http://drupal.org/files/issues/hide_submenu_01.patch) which to my dismay did not apply the patch to the module. So had to do it manually and since the patch was not that big I could easily carry out the task. There were helpful links in drupal on how to get the thing done.

http://drupal.org/node/534548

http://drupal.org/patch/apply

http://drupal.org/patch/create