UPDATE: resolved, heres what i had to do.
1. start w7 installation in safe mode, it will allow you to use the unsigned driver
2.let it install & reboot
3.windows will try and bootup but fail due to bad iastor driver (thats your raid driver)
4.start w7 installation in normal mode, it will let you...
thanks for the reply
i've tried 32 bit and 64 bit drivers, as well as old versions and new versions of the drivers, all come up with the same error saying theyre not digitally signed