http://www.llamma.com/ i guess hes useing those click adds now, just skip the add.Llammas has great tutorials for the xbox
Take the 6 screws out on the bottom Now using a Torx 10 screwdriver, locate the 3 screws that bolt the DVD Rom and Hard Drive to the chassis and unscrew. Take the hard drive out and cd rom drive out, http://www.teamxecuter.com/x3/tutorials/pinheader/v10v15/x3_removehddvd.jpg Now replace the old cdrom drive with the new one!