I have exactly this setup, a Linksys (V3) card going against a Linksys WAP54G access point.
All is well with no encryption, and now I am trying to make WPA work. I have installed Mandriva One on my laptop and also downloaded and installed wpa_supplicant. I have read every available post on all forums I could find with Google and still no joy.
I followed this thread and have configured everything similarly, and when I do a scan my laptop finds the access point, but for some reason it will not connect to it...
Is anyone still monitoring this post, and if so, could you give me a little direction? At this point I've spent many hours researching and still have no joy :(