Small update, i've noticed that in checkmytrip.com, in the Misc Info section the "Corner Bay, Alaska" "creditnn" annotation has now appeared. I think this is something to do with the credit card payment having been processed, as it always comes up on my other BA bookings. Looking more promising.

Not having used checkmytrip with paper tickets before, will it display the paper ticket numbers in there (as it does with etickets), as these aren't there yet?