Ah-hah! Got it! That's fantastic, thanks for the help [Eug]Stof . Thanks to Shifu as well for responding, but I'm glad I waited a little longer before giving up and making a second account.

I purchased both Wargame: EE and Wargame: AB together and loaded up Airland Battle first, creating an account as I did so. Now I have fired up European Escalation, I have no option to add the CD key to my account, and trying to login to my account via EE leads to the error message "this account...