A Cisco "Air-LAP" access point is useless standalone by itself. It must participate on a network with a Cisco
Wireless Lan Controller appliance to configure and manage it.
And it's just an access point, not a router too, like a typical home unit is. Looks like you bought the wrong tool for the job.
In my opinion, the best performing consumer-grade wireless routers (for max range, and typical Internet surfing 802.11g speeds) I've ever encountered, for home use have been the old Buffalo Wireless-G High Power units, which I think you can still buy online these days.