I remember, as OS/NG/VO joined *A in March 2000, it took some time to include OS/NG/VO operated flights in a RWSTAR fare. I asked about the timing of OZ operated flights to include in a RWSTAR ticket and the answer I received was uncertainty.

I also checked OZs homepage, and this was the most available piece of information I found (unfortunately, I am not able to read Korean, because OZ does a lot to promote *A):

Asiana is about to enter a most exciting era. Starting March 1,2003 you will be able to enjoy a whole new world of benefits. With more than 700 airports in 124 countries worldwide, the Star Alliance is the largest airline network in the world. So no matter where you need to go, you'll be able to get there on Asiana and our Star Alliance partners. And as an Asiana Club member, you will be able to earn and redeem Asiana Club miles on all Star Alliance airline flights, with all earned miles counting towards your elite status as well. Aside from mileage benefits, you will also enjoy one stop check in and ticketing, special worldwide privileges for Elite members and many other global benefits and services that one would expect from the world's best.

For mileage earnings & award booking, please consult your individual FFP.