Is the problem just with the receiver? I just bought Streets & Trips 2010 With GPS Locator to use on a PC with Windows 7 64-bit and it says "64-bit versions of Windows XP and Windows Server excluded." I went ahead and bought it thinking I should still be able to run it in Windows XP Mode (the Windows 7 "virtual XP machine"). Since I plan to buy a Garmin GPS anyway, perhaps that won't be necessary, if the software itself will run under a 64-bit OS and, as I understand it, Garmin devices that are on the "compatible" list will send coordinate data to the PC (I think).
Thanks,
Lou