you are welcome Lucky.
Now I placed this on top of glossary.php
error_reporting(7);
require("./global.php");
if ($bbuserinfo[userid]==0)
show_nopermission();
and since I want to place a link out for glossary, it is protected. Only members can see it.
I love that vbulletin. I am beginning to understand it more and more.
For example, I placed that code above (with the proper path) in many other php and they are all protected.