Cant seems to find the correct driver for my PCI to sataraid card driver.

Card Name : PCI to sataraid 150 4port .
On the box it has this name 'Dtech'

In xp it will auto detect and has this 'Silicon Image siI3114 controller' appearing in my device manager. I've already tried silicon image driver for win 7 & vista, both sets of driver not working. On Dtech website they only have winxp & win 2000 drivers.

Anyone have the correct win 7 driver ?