You don't use a USB cable with the router, you use an ethernet cable to connect your PC to the router. The router usually comes with a CD which you use to set up the router with your ISP's settings. Don't plug the router in to the PC before running the router's CD, the set up process will tell you when to connect the router to the PC with the ethernet cable. If the router has wireless capability, your laptop will automatically pick up the signal when the router is set up, if the laptop is "wireless ready", most are nowadays.
I am working through the installation manual but not getting very far. I have to use the internet to "program" the modem/router and to do that I have to connect the old way via the speedtouch. When I then try to use the router/modem to connect - blank.