Urgent Window Problem
 

It's urgent because I have a date tonight ;-) Anyway, today I was leaving the grocery store and my window stopped halfway down and would not continue. Now, it sounded like the motor was still working. At least, there were still sounds emanating from the door. My dad and I wiggled the glass a little later with the switch down and heard this breaking sound. After opening the door panel, we found some gears broken. The photos can be viewed at

http://www.somethinfierce.com/gear1.jpg
http://www.somethinfierce.com/gear2.jpg
http://www.somethinfierce.com/gear3.jpg

Sorry they're so big and linked off site, I feel kind of rushed. Anyway, I'm wondering what the part is and what I need to replace to fix this window. Any help or follow up questions are much appreciated. Thanks