1- there are 3 or 4 photo albums for vB, like the same you know for IPB: Coppermine, vBAlbum, Photopost, Albinator, 4images, one of my partners is building a 4image-like album too.

2- using the v3Articles system you can add a mod released to make it like a Blog system.
3- vbAdvanced.com cms/portal completely built from vBulletin.
4- vB Affiliates and referrals systems avail.
5- 2 or 3 Files database are available, even a Hacks database is... (to rebuild now)
6- answered in #5
7- the one in IPB was copied from the one available here... (as most of IPB hacks!)
9- easier than the one in IPB, someone released one...
10- image based menus are depending on the template you decide to use on your board, like on IPB... you decide yourself to use a skin without image or a heavy loaded flash template.