It's not user-friendly, but I've not gotten things up there simply because I've gotten (re)overwhelmed. It's a matter of creating a very specific XML file for metadata; I've got all the references together, but just keep getting my attention yanked elsewhere from doing it.

I'm going directly to the iBookstore, though, not through an affiliate. I'll be opening doors for others to use me as a way into the iBookstore before the end of the month, and Kobo as soon as I get the process right.