The Brisbane/Queensland version of the QR Citytrain IMU 160 hasn't been released yet. Russel Beer is still working on it. It will probably be eventually released on these forums http://austmstsworkshops.freeforums.org/index.php
The version which is in the photo is from Perth, Australia. A Perth version may or may not be released as the model's creator has said that he is not sure where to get copyright permission from.
Bring the 3900s back to Brisbane
Bring Karlsruhe Tramtrains to Australian cities
Extend the proposed Metro to Taylor Square
Extend the Gold Coast line to the Tweed