I've got a similar setup, but it's on an old system with pcmcia stuff built from scratch. I've tried moving my old cards to Mandrake with 2.4.X, but the modules don't build. I'm loading up the pcmcia adapter/card and assigning it an IP on the host/access point machine, then running dhcpd on both eth0 (wired) and eth1 (wireless) lans.
You'd have to adapt it a bit to the current configuration, but I can probably help you out a bit. Stew Benedict -- MandrakeSoft PPC FAQ: http://www.linux-mandrake.com/en/ppcFAQ.php3 IRC: irc.openproject.net #cooker-ppc
