what is the version of the program that vodafone uses to connect are you running?
it may be that the version that you are running is not compatable with win7........ I would check vodafone download site to make sure that you are running the correct v of program...... and do you have the desktop manager installed? the dtm program has the drivers in it........ are you getting an error code of any kind?
it appears after extensive testing (last min test) that it works at a different house. Just not the house i was at when i was testing it the second time.
SO it works everywhere but the place i was doing the majority of the tests!!!