She hasn't said she's running yet, but that's not stopping Sen. Hillary Rodham Clinton's foes from trying to keep her out of the White House with a new website, www.stophernow.com. Launched this week, the site features the animated Hillary Show, with new episodes planned for when Clinton makes news. The show's first cartoon guests: Sen. John Kerry, whom the animated Clinton calls "loser," and a screaming Democratic National Committee Chair Howard Dean. "We knew people were tired of the mean television ads you find in every campaign," says Dick Collins, the Dallas-based moneyman who ponied up most of the $250,000 that the site launch required. "So we wanted to have some fun." But Collins says it could turn nasty as '08 nears: "You never know where you end up."