Which macosx_setup.command did you run? I think you need to use the script from Processing (not the one from Arduino), as RXTX changed some things between the version in Arduino 0003 and the newer one in the latest versions of Processing.
Which macosx_setup.command did you run? I think you need to use the script from Processing (not the one from Arduino), as RXTX changed some things between the version in Arduino 0003 and the newer one in the latest versions of Processing.