Not much of a spoiler, but im not getting anything over in that thread...

I've found book 1 3 and 4.. just wondering if anyone knows where the other 2 are.. are there any in the inner sanctum?

Help? :c

I'm not sure what you're talki g about. Sorry, I haven't really found any side quests so I can't help you

There are 4 Falmer books you can find and sell to Urag gro-Shub. I found them all once durring beta and I'm trying to find them again and copy down the locations. The guys at the UESP are trying to gather Dawnguard info as well in to help out.

Or just look here for the locations.

http://www.gamesas.com/topic/1389448-unknown-book-locations/