WPA with freeradius

Hello i want to configure freeradius with hardware adsl router ... could you sugest me some? i've got linksys wag54g which doesnt support pure radius but WPA radius.. is it posible to make them work together with my freeradius server? any hints, links (!), anything... i've searchd faqs and lists but i haven't found anything special (or i didn't search enough) thanks wasyl