The rules have changed since high school...Former chubby computer geek Lainie Ames, now a sexy P.I., has her high school reunion looming just around the corner-and she'll do anything to become the "most likely to succeed" with former prom king Blaine Harper. Even if it means taking a class at Rules of Engagement-a company that teaches women how to snag the guy of their dreams. Armed with her list of dating do's and don'ts, Lainie is determined to...