I first got Unity under my old email address registered with AT&T, but I have since moved and switched to Comcast, in the process getting a new email address. This website is HORRIBLY laid out and me and my roommate have been spending a good fifteen minutes trying to find the way to change my account email address, if you even can.
I also want to know if the email address I registered with applies to just the forums, or to Unity itself.