I too am having this difficulty. I've set up a G1610 on an Asrock B75 motherboard. Intel's autoupdate app doesn't work; it just searches indefinitely. WinVista_64_152258 is the driver that shows up when searching for G1610 drivers, but I too get the "doesn't meet requirements" error message. The notes for that driver don't mention the G1610, so I assume that the driver doesn't work for that processor.
I would like to know if there is a driver for the G1610 for Vista64 or if there isn't and will never be. Vista was such a bad experience that I refuse to give Microsoft any more money for an OS, so if Intel doesn't support this processor under Vista, I'll have to switch to linux.
So, Intel experts, is there a working driver for the G1610 for Vista64?