Never mind that Pennsylvanians have elected Arlen Specter to the U.S. Senate a state-record four times. The septuagenarian senator still hadn't received enough adulation, in the opinion of Elsie Hillman, Pittsburgh's Republican matriarch. "The fact of the matter is nobody has ever told Arlen that they've really appreciated what he's done," she said. Hillman took care of that yesterday, throwing a luncheon for Specter that drew 1,100 to the Omni William Penn, Downtown.