You have to install the current 3DxWare, but you have to install the OLD SW drivers. I went through this at my last job. To tell you the truth, just buy a new one. I spent hours upon hours fighting with the 4K and the computer and it's not worth the wasted man-hours.
SW2008 Office Pro SP3.1
Intel Core 2 Duo CPU
2.2GHz, 2.00GB RAM
QuadroFX 3700
SpacePilot/SpaceNavigator