The October 30 debate between Gary Johnson and Jill Stein (to be held in New York at the RT studios), is the SECOND debate. There is now going to be a THIRD debate in Washington, DC on Sunday, November 4 moderated by Ralph Nader. (I don't know who is scheduled to moderate the second debate). This last debate is open to ALL four candidates again. Here is the link:
http://nader.org/2012/10/25/ralph-nader-to-host-third-party-presidential-debate-in-d-c-114/
http://nader.org/2012/10/25/ralph-nader-to-host-third-party-presidential-debate-in-d-c-114/