Once you have installed the new keys, please make another test account and character. (Sorry!) I can then transfer the new Nordock key that is generated.
I take it that you've lost the original CD?

Because Gamespy and the Auth servers went down, the Nordock key is the only way we have of keeping your account safe.
Also, if you were an old Epic player, see this topic: viewtopic.php?f=5&t=459 (Your Classic and Diff characters are already installed.)