Fried Board

So, I just got my board and was playing around with it, a Duemilanove. I put a LED in the 5v and the 3.3v (i was trying to use the ground). It apears the USB is shot, it doesnt power from it but it powers fine from the power jack. Even with the power jack on and the usb connected it still doesnt register as a com port. Is it garbage or can i do something to fix it?

I found out i fried my usb hub, not the board...