use the lspci -v command to confirm which wireless card you have installed in your system. From the error message you are getting it appears that you have an intel2915 card, but you should confirm it.
For example, here's the output of the lspci -v on my computer if you have a intel2915 card installed the output should look like this:
Code:
06:02.0 Network controller: Intel Corporation PRO/Wireless 2915ABG Network Connection (rev 05)
Subsystem: Intel Corporation Unknown device 1040
Flags: bus master, medium devsel, latency 32, IRQ 50
Memory at bc007000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2
If you have an Intel2915 card, go to:
http://ipw2200.sourceforge.net/ and download the v3.0 of the firmware. Extract the firmware to /lib/firmware
Reboot your computer and Fedora should initialize the card.
Hope this helps!