CP can't help.  They were able to help me retrieve my registration information (from http://retro.contentparadise.com/), but are unable to provide me with a P5 download as per the locker flush.

Just so that people won't think I'm trying to scam a free copy of Poser 5, I'm uploading a CP screen grab of my purchase.

The only reason I want P5 is to test for backwards compatibility as well as to use some of my legacy utilities.