I've just purchased a 'Micro USB Bluetooth Adapter V2.1' from Argos
and I'm using Windows Vista but I'm unable to connect to the Internet.
Does anyone know the manufacturer or even better where I can obtain
the drivers for it?
2 issues really Vista is old, unsupported and probably the worst Windows ever. To find a driver please download drivereasy its free safe will examine your machine and offer the latest drivers for all your hardware. Do consider envisioning off or updating your machine though.