youd have to book / have your agent book through amex plat travel to get FHR benefits.
http://flyertalk.com/forum/showpost....2&postcount=15
shows current FHR benefits, and old? virtuoso benefits
(from
http://hotels.dinersclubus.com)
if FS preferred partner benefits are better than virtuoso now, you could book through someone like DavidO to get them.