Your MB is toast.
I would test your CPU and RAM, but they are probably fine. The board probably shorted before power even got that far, (did you catch the funny smell) but that would depend on where you screwed it into the mount.
My girlfreind just did the same damn thing to the MB I gave to her as a gift. It had a 1.33 and 256MB of ram that are okay still...
My board I sent back to try and RMA it, I don't know if they will or not. I bought a new one, because I assume they wont do anything about it...