I know that this is not the right forum but I didn't know where to post it.

The thing is that I want to use Xbox Live Arcade with original bios.

I have download LiveArcade, how can I make it work with my original bios? I can run it through filemanager but I want to use it with my Live account to buy some games. What can be done?

My LiveArcade has this file structure:
/XArcade.bmp
/XArcade.xbe
/games/[gamedemos]