Hasn’t the glossy, overhyped voyeurism gone far enough? The outrageously popular TV series about a group of seven strangers picked to live together has gone into its seventh season, bringing forth a whole new generation of attractive, self-absorbed Gen-Xers for many an interminable ”Real World” marathon to come. Nevertheless, fans eager for backstage morsels about the Seattle cast — Janet, Lindsay, Stephen, et al. — won’t be disappointed in this suitably glossy, overhyped book. Among the info gleaned: that David did laundry once during the entire five-month shoot, and calendar pages were used in lieu of toilet paper. Ick.