Hi Carl,
I discovered that the video player does in fact work just fine on Windows 7 with Internet Explorer. I had also run into trouble initially, but once I installed Flash on my Windows 7 machine it worked just fine.
It does require Flash Player 11, so make sure you have the latest version installed. If you're not sure, go to this page and it will tell you:
http://kb2.adobe.com/cps/155/tn_15507.htmlLet me know how it goes!
Regards,
Jonathan Atkinson
www.ballroomdancers.com