Sheen, To make it clear, all CEC applicants are received only one AOR in email right after application has been reviewed initially at CIO, Sydney. And that was the same AOR email we used to submit BOWP application. Apparently there is no TWO AOR concept for CEC applicants since we all submitted paper application not online.
In your case, FSW, I am not sure how it works. Is FSW is online application processing? If yes then you can use the one you have received upon submitting the application. However you can send both AOR emails in a PDF format in case if you have received two. it wont harm you BOWP application processing.
I hope it helps.