You are enrolled for Self-study. That means you are playing the 6 mini-scenarios, and submitting logfiles of your play afterward.
Everything need can be downloaded from the
Core Files portion of the library.
You will absolutely need:
Panzer Grenadier Über Base Module (which you already have)
PG Über Mentoring Extension (2nd from the bottom of the Core Files list)
Minefields (an extension you will be using for your last scenario)
You will almost certainly want to download the PG Über Mentoring Scenarios Document (right above the PG Über Mentoring Extension entry) and PG Über User Guide (just below the Minefields extension).
Until you get used to the game, the PG Über Counter Menu Reference (below the PG Über User Guide) will be handy to have.
The Logfile Creation & Uploading document (the last in the Core Files list) can save you some early frustration.
Now you play the first Mentoring scenario, alone or with a friend, creating a logfile as you play. Then you upload the logfile for review. If you created more than one logfile, because of multiple sessions, zip the logfiles together and upload that. One of use will review the logfile and give feedback on feature usage and play errors.