The videos might be broken but I don´t think so...

http://www.divx-digest.com/software/nimo_pack.html

download Nimo`s codec pack and install it and then try it with your Windows Media player if it doens´t work post which message ou get. Btw Real player sucks and Quick time have problems with a lot of videos, its really the first time that microsoft has done a good job here.

Morgwen