The most recent versions are:
HLA Tutorial: Version 1.0. Check the header of the PDF document to verify which version that you currently have.
HLA Evolved starter kit: Version 1.0. Check the ReadMe file of your installation to verify which version that you currently have.
Pitch pRTI Free: Use the “Check for updates” command in the “Help” menu.
Pitch Visual OMT Free: Use the “Check for updates” command in the “Help” menu.