as you have NTL, the broadband is supplied via cable not a BT phone line. the router you have is not compatable with cable, so will not work. have a look at the link, it has some cable routers listed and read the article at the top of the page and it will explain what you need to get things up and running click here
the modem supplied by NTL must have a ethernet connection not USB or you will need to get a new cable modem as well.
if i'm wrong someone will correct me