HOLLYWOOD, August 8, 2000 -- Hey, little buddy! Pay up! That's what two creators of the legendary sitcom "Gilligan's Island" are telling the show's producer, the equally legendary Sherwood Schwartz. Elroy Schwartz (younger brother of Sherwood) and his writing partner, Austin Kalish, say Sherwood cheated them out of millions, after the show went into an eternal (and profit-making) syndication run in the late 1960's. And on Monday, a Los Angeles judge ruled there's enough evidence in the case to warrant a trial. Sherwood Schwartz's lawyers had argued that too much time had passed and the statue of limitations expired. No trial date has been set yet.