Quote - From what I've seen, IPP is definitely the superior product to Fusion

I suspect that you are correct in your above opinion and I plan to continue to use IPP, however, I made the, perhaps, misguided decision to upgrade to PoserPro and since it includes Fusion I set out to test its funtion, which, at the current time is nonexistent for me.  In addition, with the exception of the aforementioned plugin and PPro's ability to render in a 64bit environment, I fail to see the difference between PoserPro and P7.  
Well, it will not be the first time that I have made a purchase based upon hype rather than reality.  So, I guess that I will continue to use either P7 or PoserPro for character creation, IPP to import into C4D and VRay for render.
Thank you both for your input.
P.S. I might mention that support, although quite timely in their response, has not yet provided a viable solution to the Fusion debacle.  They did, however, imply that the coexistence of "another Poser hosting plugin" might be responsible.  I can only assume that IPP might represent that "other hosting plugin," and I am not about to delete it!