Dude, if he hasn't figured out to google it in the 2 months between his question and your answer...
starwarsbattlefront.Filefront.com is your best bet. The smaller mods that contain edited mission.lvl files
are about the only thing i've seen working so far on x-box. (if anyone has newer info on getting the mod tools to work, please share)
Let's not post unless we're giving constructive answers; no matter how stupid we may or may not think the question is. Telling people to search google or even these forums only bumps up unanswered threads in the search engine.