Just 15 minutes ago, Amy Davidson heard the best news the member of a network TV cast can hear -- ABC had picked up her show, 8 Simple Rules for Dating My Teenage Daughter, for the "back nine," meaning a full season. Was Jean Fowler, with whom Davidson studied acting while living in Phoenix, surprised to open a copy of TV Guide and see her former student smiling? "Of course not," Fowler says with a laugh.