If you go to this address, you get an overview of all brands and files:
http://www.chip-tuner.hu/original_ecu_files/Not everything is downloadable if you click the folder.
But change the URL (just put the folder name behind "original_ecu_files/") and you get the same overview as in the first post.
Site also states: To download please contact via email or skype: chiptunerkft