Like getting thanked is some big deal right?
Anyway can someone give me the 2 sentence "what is it?" on titanium backup and second, 2.5.2 is a flash over, correct?
Titanium backup is pretty much what it says...it's a backup. It makes restoring most of the settings and all of your programs a breeze.
Skyraider's 2.5.2 is a flash over of his 2.2. You've got to flash Vanilla over Vanilla or Sense over Sense, which you can do without a wipe.
Bonus question? I think...I don't know for sure...that if you use the Android Facebook app that's on the market, it will bring your pictures over.
Since I've only been a very short time without Sense, I don't know that for sure.