I made a wrapper.php script for a client some time ago that just reads wrapper.php?page=pagename from a ubb/pages/pagename.php page on the server for a client a while back; never really did anything with it lol
I'm doing some vast code cleanup before releasing the file; but for anyone interested you can see a demo
here.
The link in the footer of the page will direct you to the information page of the script, which will link you to the
UBBDev thread once I release it to the wild.