i had the same problem...
FC 4 has already drivers for intel pro wireless 2200. You just need the firmware (http://ipw2200.sf.net/firmware.php
Once you have the firmware, unzip the archive. You should find five
files within it:
LICENSE A copy of the firmware license
ipw-2.2-boot.fw Boot strap image
ipw-2.2-bss_ucode.fw Used in BSS mode
ipw-2.2-bss.fw Used in BSS mode
ipw-2.2-ibss_ucode.fw Used in BSS mode
ipw-2.2-ibss.fw Used in BSS mode
login as root
You need to place all of these files into the hotplug firmware directory
lib/firmware/ in my case...
This worked with my hp pavilion zt3000