it seems this topic is a recurring one, as I just figured out when scheduling a G2M today,
that I have the Co Organiser Tab, but when entering a mail address of an user under the same account,
I do not see a user list who can be added as co-organizer. I add the mail address, click on save, but when edit right after, there is no Co Organiser there
Co Organiseres are enabled in the Admin Tool and when using the Webinterface I can add and see users under my account
When you start typing in the first letter of the other GoToMeeting Organizer, the software will pull from the current list of Orgs in your group. At that point you would select the correct organizer from your account, and they would appear in the window frame just below (with an 'X' next to each CO-Organizer for the purpose of removal).