I feel your pain, I had to re-install 5Inf to get 6Inf to see all my stuff that the pre-release had used with no bother, and I'm sorry to tell you this but when you do get it installed and running you'll find out like most of us that it's crap compared to the pre-release, they've messed with the memory management and just managed to screw it up totally!!
See other threads!!

Injustice will be avenged.
Cofiwch Dryweryn.