I'm sure a majority of people will have a Windows XP system in this day and age.
I've got access to my old Windows ME machine that has GoBack, where if something messes it up I can just "go back" to a time where it worked fine. Also have beta tested many applications, even RC versions. Visual Basic computer programming experience too.
I can help test the beta versions. I have several windows OS's running. XP pro, XP home, ME, 2000 Pro, and good ol 98SE. I have a degree in computer technology. Shoot me an email if you think I can help!