select the folder you want to restore and then click Enter Time Machine from the Time Machine menulet at the top right. Then select the point in time on the right you want to restore that folder from and click restore at the bottom right of the screen.
Ive just done this with a few folders to test it and see how it works, and it works fine.
Ive got a question now, since Im doing a fresh install, how would I restore only certain things from Time Machine, such as my iPhoto Library or my iTunes Library? Do I have to go to their respective folders and do the same technique there? If yes, which ones would that be?
Thanks