To install Camtasia on your SCU asset please follow the below instructions for installing it from the software center: How to install software from the software center
Note: this has to be done while on campus
If you wish to install Camtasia on your personal computer please go to: http://staff.scu.edu.au/it/index.php/4/
Click onto the download link.
Enter your Staff details
Run the installation files
How to install on Mac will likely be a seperate article but this hasn't been discussed as to how its to be installed.