I'm getting an xbox one launch day, I have an xbox 360 that I've never connected to xbox live.
I want to connect to xbox live on my 360 tomorrow to install various DLC I've collected from pre-ordering games (e.g. the blimp in GTA V), and to keep my gamer score.
I used my email to sign up to this website and it assigned me 'CitedMoss00759', does this mean my email address is permanently associated with that as a gamer tag which has no gamer score or real identity?
I heard live carries over between consoles, so I can have xbox live on both with the same gamer tag, same gamer score and same subscription.
How do I achieve this?