if you are really at a loss, go here : <a href='
http://aid.** Links to Xbox Warez and Torrents **.com/xbox-downloads.html' target='_blank'> , download a.i.d. v2 with the 2.1, update. it`s a kind of boot disc. burn the iso, stick it in your xbox, and you can re-install the original ms dashboard, your choice of hacked dash, all the applications like media centre, dvd player.. it`s all there.. good luck matey.
ah, the link dont work, look up auto installer deluxe on google.. unless anyone got an easier way to explain..