After years of a nomadic existence, Ron Megee, Missy Koonce, and the entire Late Night Theatre menagerie found a most appropriate home -- the former porn palace, the Old Chelsea. A benefit party in September gave a raucous preview of the evenings to come, complete with tours of the pornographic wallpaper in the unisex bathroom and Twizzlers served out of mugs shaped like disembodied breasts. Now if they'd only give serious consideration to Eyes of Laura Mars.