All interfaces of the module including Modem, Network Adapter, DM and NMEA were installed perfectly according to your screenshot of the Device Manager. Unfortunately I don’t have a Windows 7 computer to verify the Network Sharing Center setting though.
Have you checked to see if WWAN AutoConfig Service is running with Automatic Startup type? You can access the Services console by “Start --> Run–> services.msc” and scroll down all the way to the bottom of the services to find WWAN AutoConfig service.