Is there any confirmed method for this?

I have a 6GPU rig, running 2x 7950 and 4x 280x. I am running 13.1 drivers, as any drivers above 13.1 will kick out 2 GPU's, they will show up in Device manager, and i have heard, i just need to install them manually, but how, is a whole different ball park.

I know where AMD stores the drivers, well amlost, but how to move on from there, i do not know.