Yep, that is the program. You would also need to buy two tile sets: Fantasyland Tileset and Traveling Through Dangerous Scenery Tileset. You can also find the program and Tilesets over on DriveThruRPG (which is where I originally bought them): https://preview.drivethrurpg.com/en/browse?keyword=hex%20kit. Altogether, it costs 30 USD for the Hex Kit program and the two tilesets.
And thanks for sharing azgaar's Fantasy Map Generator, I had never see that before, looks cool!