Heath Ledger Has a Supermodel in His SightsHeath Ledger has been stalking Gemma Ward around town and also tried hitting on (taken) Heather Graham. The server who brought Chelsea Clinton the wrong appetizer at Irving Mill may or may not have been fired. Calvin Klein is vandalizing his Houston Street billboard for the opening of the New Museum on the Bowery. NBC honcho Jeff Zucker doesn’t want the strike to end because retail advertisers have already bought up ad space, and now production costs are zero. Kimora Lee Simmons was overheard saying that the reason she invited Russell Simmons’s new girlfriend, Porschla Coleman, to meet the “major players” at Simmons’s birthday last month is because she “wants this stupid bitch to get a clue.” Seagram heir Edgar Bronfman Jr. just bought an $18.75 million condo in the Carhart mansion on East 95th Street.