Forgive me, but Firefly is not Firefly. Poser 11 made changes to it. Not all legacy content works with Poser 11 Firefly. I've seen very interesting failures with characters. Poser Pro 2014 will also give you 64 bit support. There are no more FireFly render options in Poser 11 than there are in Poser 10/Poser Pro 2014 or 2012 for that matter.
There is no new content for the older Poser People in Poser 11. You do get Paul and Pauline 1 & 2, with a small amount of clothing and poses for them.

;>

Andy!