Mama Don’t PreachMadonna won’t let her daughter dress like, well, Madonna. The U.N. campus has a pretty serious rodent-and-eel problem. Rockefeller Center and Chrysler Building owner Jerry Speyer is proficient with a yo-yo. Oscar presenter Jerry Seinfeld has been asked to host the Oscars next year but can’t because of a movie obligation. “The Secret” is Hollywood’s new Scientology/Kabbalah. Martha Stewart just bought an unfinished apartment in the West Village for $16 million. Someone stole one of Karl Lagerfeld’s Chanel dresses and sent it to Courtney Love to wear. Kathie Lee Gifford has as soft spot for Britney Spears, though her son fancies Paris. Mark Ruffalo is far nicer to the press than he needs to be.