Yes... I still like 'em 32 years later...
Not speak for the OP, but the VASSAL module called "Ardennes 44 2ed 1c" version 1.2 has two silhouetted units representing three steps in its Campaign game setup. I agree that it seems wrong for this to be overstacked (those tank destroyers take up more space than a Panzer Grenadier regiment?), but especially if we are thinking about the limited road capacity in this part of the world, perhaps the limitation on vehicle units is reasonable. In any case, the rules seem pretty unambiguous: no more than two Silhouetted Tank steps per hex.
You're right, I was using the Vassal module to learn as I read. Not having read the Setup section, I assumed this was the proposed setup and I now assume it's an illegal placement?