With her record-low ratings, it's clear America is losing interest in Katie Couric. Why, then, should we care about her ex-boyfriend, television producer Tom Werner? Because he's found a new mate: "According to West Coast spies, TV producer Tom Werner is dating Alexandra von Furstenberg - the Miller sister who was married to Diane von Furstenberg's son, Alexandre, until he left her for 19-year-old Ali Kay. If the new couple stay together, it could be the wealthy version of "The Brady Bunch," as they both bring several children to the equation." [P6] Speaking of the Furstenbergs: Flip through this month's Gotham, for a peek inside Diane's Meatpacking District's home-slash-studio-slash-store, and scope the hidden-in-plain-sight entrance to her sleeping quarters.