STEELERS WIN SUPERBOWL X-TRA LARGE DETROIT - Mick Jagger moved up and down the field at halftime more easily than the Pittsburgh offense did for most of the game. In the end, though, Jerome Bettis, the Steelers and their thousands of rowdy fans wound up the big winners on Super Bowl Sunday. Save for a few big plays that changed the game, style points were hard to come by on America's annual football holiday. But to Pittsburgh, the 21-10 victory over the Seattle Seahawks was beautiful _ a gritty grind of a game that included just enough flair to transform...