Dude what's with all the posts?
It depends on your VO - technically they shouldn't hence rejection rate is quite high but sometimes they do - it's a gamble for sure
If you already get AOR, then you can send updated documents to Ottawa
See http://www.canadavisa.com/canada-immigration-discussion-board/incomplete-background-information-form-t176704.0.html;msg2778405#msg2778405