I have been unable to find any drivers for this hardware. I searched on NI's site and came up with nothing.
This link will take you to Matrox's webapge from which you can download drivers. I did not see any for LabVIEW, but if you can find a DLL driver, then you can access that using the Call Library Function Node in LabVIEW and control your card that way.
J.R. Allen