On the computer thats connected to the belkin router using a cable open internet explorer and in the address bar type 192.168.2.1,it will take u to belkin router setup page.towards ur left under wireless click on channel and ssid it would promt u for a password just leave it blan and click submit and change the wireless channel to 11 and ssid to any name u want,make sur broadcast ssid is enabled and click apply changes.
under wireless click on security and in security modem choose wpa and in password psk enter any password from 8 to 63 ch. and apply changes..
now go to the husbands wireless laptop ,as u have not specified the OS on the computer I will give steps to XP Visa Win 7
If XP-Click start -control panal - Network connection - right click on wireless network connection and click view available wireless network -u will c the wireless network name(ssid that was changed on the router) click on the network name it would promt u for a password enter the WPA password that was enabled on the router.
If vista/Win 7 - star control panal- network and internet connection- network and shareing center-connect to a network--u will c the wireless network name(ssid that was changed on the router) click on the network name it would promt u for a password enter the WPA password that was enabled on the router.