I've spent probably 5-10 hours over time trying to get this to work on my 64-bit Win7, so I might be able to help
My main issues, were with the driver signing. 64-bit Windows has strict hardware-based driver checking systems, so you either need to sign the driver with this one tool you can use or when you restart your computer you need to go into the F8 menu and select "Disable Driver Signatures" or something like that.
If none of that works then I dunno
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_foolmo_
mobile computer