It would be VERY illegal to try and hack Xbox Live. Or even to try and generate "keys". As someone already said, YOU agreed to the terms of service (Not playing with a modified box, etc, etc..), YOU should follow your "legally binding" agreement. If you do not, you deserve a ban.
There is no reason to play "backups" on live if they are truely what you say they are, backups of your original, why not just play your originals. If you fuck and and ban yourself like an ass. It's your fault. Go buy another Xbox. It's not expensive at all (perhaps you mother could buy it for you).
If you really must play your "backups" online, use another service, like XBConnect. There is no reason to litter this forum anymore with your childish rants.
Good day.