I don't mean to be the voice of gloom and doom but I myself did the same thing, sent my application earlier than I should have and it was rejected for that reason. If you've received your AOR they will not send any of your application back and you will need to get another copy of your IELTS and your Police certificate and you will need to apply with the most up to date forms....I would definately get your Letter of Reference updated so that it shows it was written AFTER you became eligible to apply.