I'm not sure, Bill. Two of the 1931 Sulzers wound up on the isolated Maeklong line. The Frichs locos were used on the Bangkok - Singapore International Express. Other than that, I don't know.
Again, I don't know. Google Australia seems to down at the moment...
The + indicates an articulated joint, the - indicates the speartion between bogies or trucks of one engine unit or articulated section.
Cheers,
Mark.