Well, it appears that if we are on Windows 7 then the future of Python 3 scripts purchased through Renderosity is at an end. Ken confirmed that in order to my his scripts work you MUST log into Renderosity through the P12 Library Menu. The script itself pops up a login window but refuses my user/password - if MUST be though the Library Menu then Ken says the script will not ask again.....

Waiting now to see if anyone will answer my second message or if I must ask for a refund and not be able to use future Python 3 scripts......