Look into using the:
- print_cp_header()
- print_cp_footer()
Functions then, as opposed to hacking the vBulletin files. To be honest you should stay
completely clear of using any vBulletin AdminCP hacks...I don't know how much programming knowledge you have but I wouldn't give any users access to files in the AdminCP even if you are making your own options make them in a seperate folder (e.g. /usercp/ or something and base the files on the files in the ACP
but don't use the exact code unless your completely sure that it is safe.
There are a large number of print_* functions to print various items in the adminfunctions.php file:
http://members.vbulletin.com/api/