Davidd,

There is no First Class on OZ anymore. The closest thing remaining is the Business Suite Lounge at ICN.
They currently are running that part of the plane as a FLUB similar to British Airways on their 4 class 777s, see the thread on the BA forum for more details on how they do it. The only remaining part of First Class on OZ is the physical suite on the A380 and the Business Suite Lounge at ICN. There might be some of the bedding left for the Suites as well, but otherwise it's all gone.