I assume you're talking about the variation of the week, but correct me if I'm wrong.
I need more information about your setup. What operating system (Mac os 9.1, Windows 98 release 2, etc) browser and version number (Netscape 6.1, Internet Explorer 5.5, etc) are you using? If I can emulate it, I'll have a much better chance of being able to correct the error.
The video links use Javascript to launch a new browser window. Javascript is a tricky little language, because different versions of browsers all react slightly differently to it. Commands which work on one browser/operating system combo may not necessarily work on another, and so the new code will probably require some refining within the next couple of months before it works for absolutely everybody.
Sincerely,
Jonathan Atkinson
www.ballroomdancers.com