I did contact the Blank International Center and told them I had a question about using a particular test on the IAS. They told me that Susan Assouline was the go-to person for that and that she was out of the office AND THEN she proceeded to give me her email address. She told me that I should hear back from her tomorrow or so!
So.......I emailed Susan Assouline, the author of the IAS!

Nothing like getting the info straight from the horse's mouth!