Windows cant find wireless printer cant

I had a XP pro and Windows 7 in dual boot system. I unplugged the USB connector and installed the wifi into XP. Because the printer needs to connect to the router/access point and set all the wifi ssid/security.Wireless printer worked fine for the xp, but when I booted into Windows 7, i can't find the wireless printer. How do I get the computer to recognize the printer as being wireless? You