Upgrading to FusionPro 8 isn't really an option right now.
Is FusionPro 7.0 compatable with CS5.5? I'm thinking that may be the problem and I'll need to have CS4 on my computer for it to work correctly.
Did you ever figure out how to install the plugins in CS5 and Acrobat 9???
I am experiencing the same problem when installing FusionPro on my Windows XP partition, VMwareFusion.