President Reagan says it is a "sore point" with him that the guilt of Oliver North and other former members of his administration is being accepted "on the basis of accusation." At the same time, the president explained he was referring to North's Vietnam combat record when he said Friday he still considered him "a hero," despite his indictment on conspiracy and fraud charges in the Iran-Contra scandal. Reagan's statement that he did not believe North and former national security adviser John Poindexter, also indicted along with two other Iran-Contra figures, were "guilty of breaking any law" and would be found innocent was widely criticized.