Hi there Rose2000,
What sort of testing are you looking to have done? I use DS4 Pro (64-bit) on Windows 7. I'm not a guru at DAZ Studio but I have been using the program since v1.5 and have done basic testing on clothing for a friend in the latest version, things like checking the morphs work, the clothing conforms properly, the materials apply correctly, the runtime files load where they're supposed to, etc.
If you feel that I may be able to assist you, I'd be happy to consider *working for virtual clothing* or props, for that matter. I'm a stuck-at-home disabled mom so I should be able to arrange time to test during the day.
Regards,
Jude (TheOwl68)