Got slow windows?? Here is the HONDA Fix *pics*....

I have a honda 2000 civic si and i have a problem with my passenger side window, its powered window and it doesnt go up down, im here the motor working but its not going down, i heard something fell off but i didnt know what it was and i dont know how to get to it or how to fix it. But i know how to remove the door panel but anything about the window components i dont know maybe something came loose or came off. Can you help me? Or have any idea on what I can do?