Fashion: Yves in New York

For years, Manhattan's 855 Madison Ave. had been an outlet for a Gristede grocery store, surrounded by shops selling electric appliances, antiques and furs. But by last week, the space had been remodeled, with huge plate-glass windows, an aluminum tunnel entrance and, inside, distinctive orange carpeting that climbed right up the walls. It had become Yves Saint Laurent's Rive Gauche, his boutique beachhead in the U.S. And in the fashion world, Yves's name is magic. Along the police barricades, students from nearby fashion schools and aspiring models draped themselves, many in versions...