This Sunday, in the wee hours of the morning, a small knot of people bundled in parkas and boots will gather outside the Saint Paul Pioneer Press office. They're seeking the first edition of the paper. Not for the classifieds, or the news. They want the clue. The first clue in the hunt for the Pioneer Press Treasure Hunt Medallion. For those of you who have never hunted the medallion, it's perhaps impossible to understand this frenzy over a four-thousand dollar prize. It means twelve days of pouring over clues, figuring out riddles and rhymes, and digging through snow in city parks with hundreds of other medallion hunters. 17-year old Chad O'Leary is a devoted medallion hunter. We invited him into our studios to explain what all the fuss is about: --------------------------------------------------------- | D-CART ITEM: 1820 | TIME: 5:56 | OUTCUE: "...TRYING TO PARK." ---------------------------------------------------------