I know you are looking for a LiveCD, but just to give you some encouragement, getting madwifi and even wpa_supplicant to work is not that bad. I was able to get madwifi running without too much of an issue on my Mandrake 10.1 laptop. Getting wpa_supplicant was not too bad either after I found the a page that had a couple of missing directives I needed. And after I munged the partition table and had to re-install it was even easier
