Let me start again (Lol).
My site got hacked. I couldn't get into the VBulletin control panel at that time.
I went into my webhosting package and took control that way. Ended up deleting all the content and starting from scratch.
A fresh installation of 3.8.0 was completed. A new database created.
Once everything was running, I went back in and tried to revert 3.8.0 (previously running 3.7.8) to the old database. The result was a clean version of 3.8.0 with the hacked front page.
I could not get into the admin panel when the site was hacked, but can now. The fact that 3.8.0 shows the hacked page on the old database makes me think the code is inside the database and not directly in VBulletin. I'm trying to establish if I can save the database because there's alot of content in it.
Also, I'm trying to find out if I can change the address of the admin login to a 'custom' one for added security i.e. NOT admincp/index.php.
Hope that's a bit clearer.