Need some help. Just bought into the KVS Diamond tool. Read a bunch of stuff and still do not understand a thing or two as to finding available upgrades on US Airways and *star alliance. I do not see any O's anywhere when I have looked at a number of months. In my case I am looking to purchase coach fare for upgrade using miles to ENVOY---PHL to VCE or PHL to FRA, MUC for this fall.

Yes, under "Awards/Upgrades" I do pull up flights and see, eg, FS+ or CS+. I then go to the Availability tab and see the D9 Z9 Y9 listings but where are the O's?

Two other questions: What does the "St" stand for in the database and is there a way to associate a fare with a class?

Thank you.