Two AP and one cable

Hi,

I've a wireless network with an AP, a router and a FW connected via LAN. I
have to move my internet connection (router) to another floor but i lose
signal on the last floor (i can't use any kind of cable on this building).
I've "found" two AP called Lucent WP-II with 2wi-fi card slot, can i use
these AP to create a complete wi-fi network using 2 AP not wired connected
with router and fw on only one AP?

thanks