is it possible to take the hard drive out of my xbox then put it in my comp then add install my to it from there?
Cant say this enough but . . . . . . NO! you must either make a DVD for your xbox in XISO format or FTP it to a temp folder (see my tutorial if your updating http://forums.afterdawn.com/thread_view.cfm/367424 on how to do that) the easy way is to make an XISO to do a clean install