[Ntfu2]

First you'll need to get a CMS if thats the way you want to go. You can get a free one from vbAdvanced.com its pretty good, basic and easy to use.

There are a few paid ones as well, such as vBPortal but its pretty advanced, MKPortal and a few others.

You'll need to rename your index.php page thats there now, to something like forums.php then in AdminCP -> vBulletin Options -> Forum Home Page Options -> Script Name for Forum Home Page

Change that from index to forums (if you used the above example)

Then you can have the CMS as index and you wont have to change much.

Thats pretty much everything to it. Do it step by step. follow the instructions from the CMS you want to use, and you'll be good to go