When Captain Sim first released 767, it included the Qantas livery for RR model, somewhere along the line, it became a Qantas livery for the GE model. Knowing this, I installed the older version and retrieved the Qantas RR livery from it, to use in the latest version.

I hope Captain Sim don't mind my sharing it, but you can get it from here: https://www.dropbox.com/s/nxzi2t80gq7e7ke/CS_B767-300_QANTAS_RR.ZIP?dl=0 ;)