Kleppen , from BÃ i Telemark , became 100 years old in March 2007 and , having been part of the 1928 Winter Olympics , was Norway 's oldest living Olympian . Kleppen , from BÃ , Telemark , celebrated his 100th birthday in March 2007 and , having participated in the 1928 Winter Olympics , was Norway 's oldest living Olympian .