The pilot/owner reported that he landed with a quartering tailwind, that was within the airplane's limits, at his private airstrip. He landed with a slightly higher airspeed due to the winds, and discovered during the rollout that he had "nil" braking. The airplane subsequently overran the end of the 2,200-foot runway and struck a pine tree. The pilot/owner also reported that he had not properly seated the airplane's recently installed brakes, "resulting in very limited braking action."