[Dismounted]

PHP Code:

<?php
$cur_dir = getcwd();
chdir('/path/to/vbforum/');
require_once('./global.php');
chdir($cur_dir);

if (!is_member_of($vbulletin->userinfo, 4, 5, 6)
{
   print_no_permission();
} 
?>

This would deny everyone except if they are from usergroup id's 4, 5 and 6.