MonkeyManx -
I checked out your page, and you seem to still have a problem with errors showing up for users without a cookie. Check to make sure that the following part of the code from the textfile I posted is
before any HTML in index.php.
Code:
<?php
// Changes to forum directory, runs "usersonline.php", and changes back
chdir ("forums/"); // Change "forums/" to reflect your vBulletin directory if it is different
require("usersonline.php");
chdir("../");
?>
Other than that, it looks like it fits in real nicely with the rest of the page