The hacked drivers are no longer complicated. You simply boot to safe mode, then install the Nvidia drivers, followed by the GenL software and reboot. That's it.
But if you don't have the slot on your motherboard, is it really worth all the money for those 3 games?
Edit: here is the hack if interested: http://www.ngohq.com/graphic-cards/17706-hybrid-physx-mod-v1-03-v1-04ff.html