As a favor to his brother, Toby Peters does a job for a fading Hollywood divaYou can't trust a man who's dressed as Mae West, especially not in Mae West's house. One of Hollywood's earliest sex symbols, the whip-smart blonde's star has fallen since the Hays Code cracked down on the racy repartee that made her famous. Her latest project is a thinly veiled autobiographical novel, whose only copy is stolen just after she finishes her first draft. Tonight she's having a Mae West party, with every gu