I have the same card.
I won't work properly with Windows 7 64-bit because the 64-bit version requires drivers to be signed. Netgear doesn't provide those signed drivers.
Anyway, to make it work, you will have to disable the driver signature enforcement.
After the POST, keep pressing F8 and select 'Disable Driver Signature Enforcement." You will have to do this every time you turn on your PC though.