First fo all, in order to run the Gens you need to load chikhen. You can find that any where on the internet so i wont give a link. After that run CFW Enabler 3.6. This allows you to load the Gen's. After that you can load the Gen.

----Added 15/12/2009 at 7:05 AM----
BTW, if you load 5.50 GEN-D2, you can get PSN. Thats what I have right now.