It sounds like BT have upgraded the OP from a wired router to a new BT Home Hub which includes wireless. Can the OP confirm this, please. If this is the case, then PC World (among others) have several USB Wireless adapters ("dongles") for sale from £20 upwards. On the base of the router there will be one or more labels which give the SSID of the router (this is the "name" that the wireless router broadcasts so the PCs, or other devices know which one to connect to) and another with the WEP, WPA or WPA-PSK password (for want of a better name). After installing the wireless dongle in your PC, and loading the supplied software, right-click on its icon in the System Tray and select View Available Wireless Networks. Click on your network SSID name. You will be prompted for the "password". Then, after a few seconds, you should have a wireless connection to your router. I run my laptop exclusively on wireless, and have no problems at all, even sending large print jobs to a networked printer. Please let us know how you get on.