Ah, thanks. In that case I might be better off waiting until 8 November when I will be going to renew my annual Extension (plus my wife and son's)? Will I get one queue ticket ('N') for the transfer and the Extension renewals?
I received my new passport in early October. I was planning to get my Extension transferred at the same time, or right before, getting my new Extension on 8 November. Presumably it's ok to get it all done at the same time?
I don't bother doing 90 day reporting for my 3 year old son, although I do it for myself and my wife. Immigration have never said anything or suggested I should be doing it for him (he and my wife have Extensions piggy-backing on my work Extension). I doubt he could be fined anyway.