[sinisterpain]

Check you vbsupport.php file and tell me if it looks like this:

 // build the $emailids
    $vbulletin->datastore->do_db_fetch("'vbs_category'");
    $pmids = explode(',', $vbulletin->vbs_category["$categoryid"]['adminpmusers']);
    $vbulletin->datastore->do_db_fetch("'vbs_category'");
    $emailids = explode(',', $vbulletin->vbs_category["$categoryid"]['adminemailusers']);

    // check for email notifications
    if (is_array($emailids) && is_array($pmids))
    {
      // process add admins
      $vbulletin->datastore->do_db_fetch("'vbs_admin'");
      foreach($vbulletin->vbs_admin AS $userid => $user)
      {

Also have you tryed to install without my edits first.