Door on my Honda Odyssey was slammed and window went down?

I have it taken apart I think I found the part that came off but not sure how it goes on please help its wire with a spring and stop on it

The van power window regulator has came apart (Broken cable), that is where you have found the spring and wire (Cable). The only to repair is to replace it as an assembly. It is cost around $65 or so.

Since I do not know what year or which window but this link may help to see what you have to buy:
http://www.amazon.com/...003FL31HU/
or:

This video will show you how to replace it:

Edit: Hope it help. E mail if you have more questions. HTH

Advance Auto sells window regulators at a good price and they fit. That's the only thing you can do.

Take off the other door and use that as a reference point. It is more work but without actually being there no one can really help with it.