There is a report about the seminar on the FIDE website:
http://www.fide.com/component/conten...a-results.html
It does contain an interesting statement: The lectures were in
French language ... though they sounded very much like English to me
It is, but can you imagine if an arbiter only got half their decisions correct?? It would almost defeat the purpose of having an arbiter in the first place!
As for practice exams, Shaun said at the seminar that he hadn't seen anything online, but used some material prepared by Stewart Reuben as the basis for the exam in Melbourne (and that these questions weren't in the public domain either).
As for Jack's age, it is of course possible that FIDE could drop the age limit for qualification in the next few years ... and if it dropped to 18, then he could use this exam result towards a title ... and if not (and he still wanted to pursue the title), I'm sure he could repeat his performance in this test & pass the exam again!