OK, I'm US Airways Chairman (*A Gold) and my company's travel agency booked the following itinerary for me. I don't know what the "Fare Basis" codes mean, but I called US Airways and they said I couldn't use points to upgrade either of these flights. I'd really like to upgrade if I can. Is it possible, for example, to call my travel agent and see if I could upgrade the coach fare out of my pocket to a better coach fare, and then use miles to upgrade? What level does my coach fare need to be, and how many miles (and $$) will it cost to then upgrade to anything better than economy?

ORD -> PEK Continental 6009 (operated by United 851)
" Fare Basis Code: DCCO*BBVLNN"

and, later:
NRT -> SFO Continental 6004 (operated by United 838)
Fare Basis Code: DCCO*BBVLNN;

Thanks in advance!