7PM This episode's headline: Dollar Doldrums; Building Jobs; AIDS & Addicts; Selling Cells. The guests include In Washington: RICHARD DARMAN, Former Treasury Official; In New York: DAVID JONES, Economist; Dr ROBERT NEWMAN, Beth Israel Medical Center; Rep. CHARLES RANGEL, (D) New York; REPORTS FROM NEWSHOUR CORRESPONDENTS: PETER GRAUMANN, KQED, San Francisco; JUNE MASSELL; LEE HOCHBERG, Seattle. Byline: In New York: CHARLAYNE HUNTER-GAULT, National Correspondent; In Washington: JIM LEHRER, Associate Editor