SALON Z: SIZES 14 TO 24. GIANFRANCO FERRE FORMA PINSTRIPE SUIT IN CHARCOAL. JACKET $890. TROUSERS, S365. TIE-NECK SHELL IN BLACK, S295. ALL IN WOOL. ON THREE IN TROY. SAKS SAKS SAKS SAKS SAKS SAKS S/ FIFTH FIFTH FIFTHA VENUE TT AVENUE N U SAKS.COM The Somerset Collection, Big Beaver at Coolidge, Troy (248) 643-9000. Monday through Friday 10 to 9; Saturday 10 to 7; Sunday 12 to 6. Fairlane Town Center, Dearborn (313) 336-3070. Monday through Saturday 10 to 9; Sunday 12 to 6. AV 9/21 2001 9