Normally the routers contain one USB port and anoher Ethernet Port. You can use either of the two. See, from your explanation, already you have connected your pc with the USB. So, your LapTop cannot be connected directly with the router.
You have to install a bridging software such as WinProxy in your PC and you have to connect your LapTop and PC with eathernet cards.
For a Bridge connection, the information needed to make and maintain the Internet connection is stored on another computer or Gateway, not in the router iteself. You better follow the instructions of your Service Provide for this additional software. OR better use WinProxy.