Recently, I reinstalled Fallout 3, again. While I played New Vegas, I got in the mood to dabble around with the old game, but once I installed, I ran into a problem. I have all five DLCs, but I can't access my old saves, or the DLCs, themselves, without entering my activation code. The thing is, I don't have my manual, anymore. I've searched high and low, left to right, and no luck.

Is there any way I could have the corresponding activation code emailed to the address listed on file? If not, how can I acquire the code to the game I purchased?

Any help would be very much appreciated. I downloaded Mothership Zeta, and never actually got around to playing it.