so i screwed up with my eeprom and my hd's were locked. i just put a new one in and its set up.
so

can i lock it now with configmagic?
can i go on live with it then put in my other hd to use on live after i fix it?
can i downlaod the halo 2 maps and then transfer them to my other hd?
is my eeprom set, like can i go on live now with this other hd? after i flashed the eeprom without locking the other hd's?