I'm from Australia too and when I initially saw TWOK at the cinema I bought the program which has Star Trek II Wrath of Khan written on the title. Now I probably saw it in the first week but can't remember what the title was. The only evidence I have is my program.From another thread on this website:
Oh yes [prints of WoK had II] did! The first three or so weeks in the US had no "II" in the title, and then these prints were sent out to the international markets. While the US started to see titles with "II" in them, the movie then opened here in Australia with no "II". Then, about three weeks later, our club organised a return trip for a group booking and our prints were likewise marked with "II"."
So it seems only the first few prints had no II.
And to settle the point, the next film was called III even in its very first prints...So unless you want to argue there was no Star Trek II, or no Star Trek....Then yes....TMP shouldn't be ignored.
Any issues with Kirk being Admiral can easily be brushed aside.
So I guess the programs had been printed months before and the intention was to have Star Trek II associated with the picture. So perhaps the initial screenings without Star Trek II on the title were a mistake??? Unless of course someone was sneakily ignoring TMP.