*Even on my 64 bit system which only has Poser Pro installed in the default, and I am set up as Administrator on all my systems, still can't get the help file for poser pro to come up.

Same here.   The Poser Reference (not Poser Pro) starts OK, but that's not a huge amount of use, if it's information about Pro that is needed, and the PoserPython manual also comes up OK, but the Poser Pro Reference link seems dead to me.