When you install Mac with Unibeast or MyHack dont insert your card till after the installation. After restarting from the installation install multibeast with the right stuff selected for your config and also install your motherboard drivers. Dont restart yet and install these drivers:
After this installs restart and insert your card back in your rig. Go to About This Mac and it should have your graphics card model.
There is a thread about Quadro cards on TonyMacx86:
http://www.tonymacx86.com/general-hardware-discussion/108695-quadro-fx-4800-pc-hackintosh-compability.html