Joe Millionaire inched closer to bankruptcy this week. The show's second episode averaged 6.1 million viewers on Monday — off 700,000 viewers from its faint premiere last week. Skin also continues to struggle, attracting just 5.1 million viewers in its second outing. The news isn't all bad for Fox, however. Buoyed by its telecast of the World Series, the network easily won the Nielsen derby last week. Still, CBS had the top show with CSI.