=( I just fried my Duemillanove today. I connected the ground to an oscilloscope that had the case ground shorted to the AC line.
FLASH POP followed by half the room losing power
After disconnecting everything and resetting the breaker, everything was ok except the Arduino.
The FTDI is fried...
I have actually had success using drag soldering to replace the FTDI chip but it did significantly damage the board so I cannot fix it at this point.
As far as the OP's problem, if they have a small soldering iron, small solder and a flux pen, they might be able to fix it although the 8U2 has an even finer pitch than the FTDI chip. Overall, I think they will need to purchase a Arduino like I will need to.
Bad day for Arduinos I guess 