Xbox 360 Questions

For future people to ask questions on their consoles, post it here but I made this mainly because I have a question.

How can I switch all of my game files from my first profile onto my Live Profile? It made me set up a new account and none of my saved files switched over to my new. I can play my files if I switch my profile over but want them on my Live profile so that way I don't have to beat them again (also so it is on my GamerTag which is why I want them). So is there a way to do this? I have had my system for 3 years and just got Live which is why I am confused. I beat Guitar Hero 3, DBZ Burst Limit, Lego Star Wars Complete Series and others, I really want my data on my new profile so that I can also play with then on Live considering I beat them. Thanks if anyone can help me or tell me how to switch my profiles!