Alienware m15x r1 windows 7 64x drivers and software needed and i dont have a service tag

iv recently bought a faulty m15x that needs a little work odne to it its the one with 8800m gtx sli cards in iv checked the bios and it dont have the service tag iv recently had to reinstall windows and of course i had to put a 64x version  on because of the hardware in it..

its a beaut iv sorted the gfx issue kinda wel got roll back drivers of it and works aslong as iv got it in descrete mode when i plug it in or itll freeze got onto a blank screen and then reset.

i was wondering if theres a way i can get command centre or aura and the rest of the software and proper working drivers for it please help!!!!