1) it's called Ltools, not Itools (a lot of people mix that up, but you'll get more info searching for Ltools)
2) search the forums for Ltools
3) search the forums for xbins
4) .....no 4
((and when you do get to the end of the rainbow...it's under xbox\operating systems\linux\distributions))
edit: i just searched the forums for xbins and *sigh* nothing particularly relevant came up so....
http://www.xbox-scene.com/articles/xbins.php