Thank you all for your answers and clarification. Much appreciated.
Steve,
From what I can tell in your note, I think I might have a related issue.
You understand more than I do but what is happening to me is that as administrator for some reason I can only see other administrators as authors. I would like to see other levels so I can change authors to posts.
Specifically I have parent users, teacher users and admins. I want to see the teachers. I’m running the Member plugin to restrict access for posts and using s2Member.
Given that you seem to understand what is happening, is there anything you can offer for help in how to do it?
Thanks.