HELP! I lost my setup installation CD for the "Router". IS there any way to set up a new wireless connection:?

you don't need the CD at all. Plug into one of the 4 ports in the back. Bring up your browser. Set the browser address to 192.168.0.1. You may need to push the tiny reset on to get it back to factory condition. You will see a signin page popup. I remember, not sure, that the login is cisco and there is no pword. Now use the menus to connect to your provider. The local network should already be working when in factory condition.