The 1.3.2.7 Driver stack says network cable unplugged whenever the network access profile is not in use, this is normal.
Most widcomm 1.3.2.7 drivers can work across brands, the Belkin f8t001 has a Belkin released driver stack.
Where to get 1.3.2.7 and recommendations different adapters:
Tecom/Encore BT3030 1327 Drivers.
Belkin F8t001, IOgear GBU301 FileHosts.com. This was an official Belkin driver later pulled from their site for some reason.