Smackdown vs Raw online

Can anyone tell me how I can get my created character from my saved file on the XBOX 360 to use him online.
I played a full season with a created character and saved it to the hard drive. I just recently got the wireless so I can go online, and there are people with created stars there, but for some reason, I cannot get my character with the built up stats to be online. Any help would be greatly appreciated.

If you are making your own game on live, it's in the options when you make the match.

Does anybody here actually have SvR 2007? I always thought it was really fun to play online with my cousin, but he's moved on from video games pretty much except for WoW.