wpa_supplicant Unsupported driver 'ipw'

Hello,

I tried to use/install my Intel Wireless on a Dell M70 Laptop.

If I try to start wpa_supplicant after configuring all.
I got:

~ $ service wpa_supplicant start
wpa_supplicant starten: Unsupported driver 'ipw'.

I have tried some other Drivers all the same. 

Here the rpm-version of wpa_supplicant which I use:
~ $ !rpm
rpm -q wpa_supplicant
wpa_supplicant-0.4.8-6.fc5

My Kernel
Kernel is: 2.6.16-1.2080_FC5

In /lib/firmware I have the files for ipw2200 2.2 , 2.3 and 2.4

Has anbody seen this before ? 
Thanks for any hint.

Reinhard