Mission, 1stly welcome here
2nd which Belkin router you got there matey as I'm 100% sure that we dont have any usb routers and havent even heard of it.
normally if your on NTL cable then your modem should have an Ethernet connector and USB. if your on NTL Freedom then if correct you get a BT modem pure usb so if thats the case then you need to swap your router for a modem router otherwise there wont be a single chance for you to get this working.
trust me I deal with it everyday.
belkin techie