wpa_supplicant && mandriva 2007

[engage]

I haven't been able to get WPA running since doing an upgrade to Mandriva 
2007. A fresh install of Mandriva didn't help either. I'm using a Linksys 
WUSB54G which worked with Mandriva 2006 & ndiswrapper & Windows XP driver 
rt2500usb. Mandriva 2007 wants to use the rtusb driver (alias rausb0 rtusb). 
The card does show an association with the AP but I can't get it to use the 
encryption. (All my other wireless devices are associating with the AP with 
WPA) I searched the hard drive for the rtusb driver but only found a listing 
under /sys. No matter what I try I can't get the USB device to use anything 
other than rtusb. The only rt* driver I can find with lsmod is rt2570. I 
tried renaming all the rt drivers under /lib/modules with a .old extension 
and then tried a reboot only to have my changes undone (the .old extension 
was removed - yes, I did confirm that everything was renamed before the 
reboot). I tried to use ndiswrapper with the "help" of the MCC but it kept 
telling me that the ndiswrapper interface couldn't be found. I tried to 
modprobe ndiswrapper & ndiswrapper installed but the rt2500usb driver didn't 
install (ndiswrapper -l shows the driver and hardware present) and no wlan0 
showed up. I even tried removing the wpa_supplicant-0.5.x that came with 
Mandriva 2007 and tried installing wpa_supplicant-0.4.9. Still no-go. I get a 
LOT of ioct [SIO........]: Operation not supported. I'm executing: 
wpa_supplicant -irausb0 -c/etc/wpa_supplicant.conf -B.  I don't know if this 
is enough information help diagnose my problem. Googling hasn't turned up any 
solutions yet either. The USB card does support WPA/WPA2, obviously, since it 
worked with WPA2 in Mandriva 2006.