No they do not. I am having the same issue with Windows 7 64bit and the Silicon Image Si3114 Serial ATA controller card. In device manager it shows up as AWVYB2WL IDE controller instead of the Silicon Image controller. I tried to upgrade the drivers by right clicking on the device, select Update Driver, choose the folder location where I have downloaded the Silicon Image 3114 SATA driver, it warns me that it might not be the right driver, click yes and I am told I have to reboot. After reboot, device manager is still showing AWVYB2WL IDE controller and my drives are not showing up.
Even more interesting, I googled AWVYB2WL and nothing comes up at all. Microsoft seems to know what AWVYB2WL is - I wish they would let the rest of us know