I have an original XBOX. I made a Gamertag at XBOX.com but when I select "Recover Gamertag" it wants a Credit Card too. I made a silver account, so why does it need a credit card?

Silver accounts to my knowledge are not compatible with the original xbox

and when you made the account at xbox.com it made it for the 360, and you can't recover a 360 gamertag on an xbox 1.

Not true. I just did that because I sold my 360. You have to input a C/C on the 360 dashboard, then it will carry over to the original. I called XBox tech support and that's how they explained it to me. Worked like a charm. My screen name was originally made on a 360