Just on the Thai upgrade thing - yes, looks nice but I can almost guarantee this wouldn't work on a * RTW.
it did work (paying a one segment upgrade from eco to business with SFr/US$), but that was two years ago and I wasn't even a ff-program holder with TG, on a *-rtw starting in Zurich (ZRH-BKK) when I bought that rtw-ticket at TG's downtown office in Zurich. And the upgrade than was confirmed at booking time (about 5 months before my trip started).
[This message has been edited by Rudi (edited 05-28-2002).]