David - do you mind emailing them that from the site, I am not the go to person on registration or info, I am facilitating supply's and making sure the instructors visit is a pleasant one.
On this note there is one or two paid assistant positions to help the instructors.
Must have a car , open slate for the whole week, and deep interest in the work. You can contact me directly at firstname.lastname@example.org.
Not a lot of money but an opportunity to mesh with top rate instructor.