For Julie Portman (Marlo Thomas, TV's "That Girl"), the past few years have not been easy. Her divorce has left her with the sole responsibility of providing for her teenage children. And, as she scrambles to find the college tuition for her son Michael (Troy Hall), her daughter Emma (Ellen Muth, TV's "Dead Like Me") becomes ever more difficult in her adolescence. While she strives to be a good mother, her irresponsible ex-husband, Robe