well from what I can see it maybe both the driver/software it gives some weird error upon inserting it into a 64bit win7 pc.
half way thru the install it just cancels out, 32bit is fine though.
Even googling the error and applying the 64 bit registry fix doesnt resolve it.
Only 3g seem to have bothered to support 32bit/64bit vista/7 the others are like meh....
software updates will happen but its gonna take time since win7 is new...
I get customers arguing and moaning at me and im like you are aware I didnt create windows 7 64bit let alone vodafone/tmobile lol people really are stupid out there, they should have a go at them instead for creating the issue.