Rudy basks in sea of fans

    ...yesterday's St. Patrick's Day parade ...became an almost triumphant march along Fifth Ave. for Giuliani, who was greeted with cheers of "Go, Rudy!"

    Outside of a handful of boos, most lobbed by protesters at 59th St. opposed to the parade's exclusion of openly gay marchers, it was as if Giuliani were leading another Yankees victory parade - only everyone was in green.

    Giuliani also got the royal treatment from Edward Cardinal Egan, who stepped to the curb outside St. Patrick's Cathedral to greet the twice-divorced mayor.