GB,
I'd love ity if that were the case, but I don't see how you can interpret this page:
http://www.asiamiles.com/am/1,,22535...2_eng_,00.html in that way. It seems to me that if you want an upgrade using AsiaMiles on BA or AA then you must have an e-ticket. I don't see how the text can be interpreted any other way. (It is OK on CX, KA and LX to have a paper ticket.)