The vBulletin Suite comes with the following scripts:
- vBulletin 4 forum
- Blog
- Project Tools
- CMS
You can disable the CMS functionality from your vBulletin admin panel -> Plugins & Products -> Manage Products.
Also, you can alter the URL of the Home page button from your vBulletin admin panel -> Settings -> Options -> CMS Setting -> Content Management -> Site Tab URL.