Heritage Centers will celebrate its 50th anniversary at a creative black tie party Friday in Buffalo Niagara Marriott. Cocktails at 6:30 p.m. will precede dinner at 8, with dancing and entertainment by Joyryde, Hitman Horns and Elvis impersonator Terry Buchwald. Larry "Snortin" Norton of 97 Rock will be master of ceremonies. Guests will play a creative version of the game Monopoly at their tables. James P. Lalley and Elizabeth J. Simons are chairmen.