IN SUCCESS' WAKE:
"Melrose Place" alum Grant Show, Lili Taylor ("I Shot Andy Warhol") and Shawn Hatosy ("Outside Providence") are among the guest stars for the second season of HBO's funereal "Six Feet Under."
     Alan Ball's wickedly twisted drama returns in March. Reruns of the first season's 13 episodes are seen at 10 p.m. Wednesdays.
     New directors this season include: Dan Attias ("The Sopranos"), Rose Troche ("The Safety of Objects") and Alan Taylor, an executive producer of the show.