Trident SuperVGA (TVGA8800CS) Driver needed.

This graphics adapter is detected as a svga by Windows95 but it is only capable of 16 colours. When I try to change it to at least 256, windows wont allow it.I know it is capable of this as it ran it better a year ago but I cant remeber where I got the driver from. I am trying to play Warcraft2 on this machine and it keeps asking for the vesa driver from the manufacturer. Does anyone have any advice or know where I can find a driver. Please!