Sunroof won't shut... HELP!!!!

I have a 2000 ford contour and the sunroof is stuck half way between the open and closed positions. I think its getting power because I can hear it clicking but it won't move.

What do I do??? I have to get this thing shut!!

Got it shut. Had to push it by hand while holding the button.

I found this in a google search on it..
http://www.sunroofgears.com/sunroof_install_contour.htm

It looks like I am not the only one that has their Contour sunroof crap out. Anyone ever try that fix?? or should I just look for a used unit?

Thanks to contour.org we have 2 sources for sunroof gears. The one you listed and the other is http://www.odometergears.com/.