Broadband Tuner

Apple has a broadband tuner: http://support.apple.com/downloads/BroadbandTuner_10 but is dated back in Nov 05. It is supposed to improve FiOS connections but the wanring at the bottom of the page has me leary to install (Note: Broadband Tuner 1.0 is not recommended for AirPort connections.)

Has anyone tried to install this tuner or aware of another that can speed up high speed connections?