IBM 7800 FireGL Drivers in M7500

[donradeon]

Have installed above drivers in my Dell I8100 WinXP pro, and wish to know if I am getting all features of the 7800 drivers on my M7500 card? I am looking for improved performance in CAD renderings with SHADOWS in single 3D scenes. The review of the 7800 FGL on this site says the drivers are not supposed to work with the M7500. Where I had almost no rendering speed with shadows on the old drivers, I am getting 100% improvements with the 7800 FGL drivers, though it is not consistent on different CAD plans. Also I would like to be pointed to a good reference on understanding the Advance video settings and what they do, with these drivers. TIA