Touchy-feely designer and Mr. Blackwell wannabe Isaac Mizrahi will be MIA from E!'s red-carpet review at the Screen Actors Guild Awards on Sunday. Did someone get their hand slapped for situating it on one of Scarlett's Johanssons during the Globes preshow? "Due to Isaac's schedule," a rep for the cabler insists, "he cannot make the SAG Awards but will absolutely be back on E!'s red carpet for the Academy Awards." Sure he will  if he can decide what to wear.