URGENT! Major template problems - not loading modified ones, some disappearing!

[X-Fan]

Okay, I managed to get the default templateset back, however now I get a bare bones forum front page with a blank message box in the middle of the screen:

http://www.comixfan.com/xfan/forums/index.php?s=

I've tried editing the forumhome template, but for some reason the system is using only the default template and none of my modified ones.

In fact, the system isn't reading any of the stored variables, such as $hometitle, $bburl, etc. Not even $versionnumber is being read so currently my vB is null version!

I've also tried upgrading to 2.3.2, but even that causes a problem as no version number shows up for vBulletin. I re-uploaded vbulletin.style to the FTP and went to import it, but got this error:

The version of the style file does not match your version of vBulletin. Please obtain an updated version of vBulletin and/or the style file.

Your template version:

Style file template version: 2.3.2

I've checked my database, and all posts, threads, forums, users etc are still there. I've checked all the settings in the admin and the board is open, forums are visible, usergroups are established and permissions as they were before the hack attack, but just nothing is showing up on the index page.

Please, can someone help, as my site is my livelihood and every minute it's down is lost revenue for me!