The Mongoose visualizer expects data to be output by the Mongoose in a certain way. The #defiine's you have listed, with their default settings in the Mongoose AHRS code, will output stuff in the correct manner for the visualizer. The rest is just for debugging. ie if you tell it to output the DCM matrix (#define PRINT_DCM 1) then, as far as I know, the visualizer will completely ignore that output data.
Firmware for the Mongoose should be ready in a day or 2.