2 Involved in Flawed Report at CBS Resign By JACQUES STEINBERG wo of the three CBS journalists who had refused for more than a month to resign over a disputed broadcast concerning President Bush's National Guard service have now submitted their resignations. In a statement released by her lawyer last night, one of the journalists, Mary Murphy, senior broadcast producer of the Wednesday edition of "60 Minutes," which broadcast the report, said, "CBS News and I have reached an amicable resolution." She added: "During my time at CBS News, I enjoyed wonderful working relationships with many talented and dedicated journalists....