Jordan - I must say your Shield Volcano .tgd is quite impressive!
I became a registered TG Classic user a few years (around year 2000) prior to TG2. What I am saying is that even though Classic is still available from somewhere, Planetside no longer maintains it, nor offers registration for it - or so I believe. That proprietary notice simply says commercial use requires it and personal use is optional.
So if you have the program, it works to a fair extent but without a key several main features are locked (max render size and quality, max size of terrain to work with, some water features).
I am sure however that
Button 9 still works...