This episode's headline: Ceasefire; The Business of AIDS; Image Problems; Ball Games. ANCHOR: JIM LEHRER; GUESTS: LEON ARON, American Enterprise Institute; STEPHEN SESTANOVICH, Carnegie Endowment; LEE CULLUM, Dallas Morning News; PATRICK McGUIGAN, Daily Oklahoman; WILLIAM WONG, Pacific News Service; MIKE BARNICLE, Boston Globe; ROGER ROSENBLATT; CORRESPONDENTS: IAN GLOVER JAMES; MARGARET WARNER; FRED DE SAM LAZARO; ELIZABETH FARNSWORTH;