There are many ways to do this but probably the EASIEST in the world is to use Slayer's Evox Autoinstaller 2.6 to upgrade the HD for you -- it will format it AND put several apps on it (that you can delete if you dont' want but they're handy). Slayer's autoinstaller will need to be downloaded and put on a CD-RW and you use it to boot your xbox.
As long as u're xbox is modded, u can use Slayer's boot cd... [image]http://img149.echo.cx/img149/791/felixanm7od.gif[/image]