This is not that story. Jerome Hancock is Heidi Devine's guardian angel. Sort of. He's more of an angel trainee, in heaven's soul-rehabilitation program for wayward teens. And he's just about to get kicked out for having too many absences and for violating too many of the Ten Commandments for the Dead. Heidi, meanwhile, is a high school junior who dreams of being an artist, but has been drafted onto her basketball team because she's taller than many a grown man. For as long