NEW YORK — Kirstie Alley (search) has pulled a switch-a-roo on the tabloids. After many photographs splashed in different celebrity magazines documented her noticeable weight gain, the former "Cheers" (search) actress is going on the offensive. With her new Showtime show, "Fat Actress," (search) to begin filming this fall, Alley is by no means shirking the attention to her weight problem. But that's not to say she's happy with her appearance. Alley told People magazine: "The weird thing is, I don't like the way I look — and I like who I am. I like who I am better than...