Hey Jim --
I got your PM too. But, damn it, your expecting me to recall something from five years ago when, at my age, I can't even remember what I had for lunch yesterday !~?
But I'm flattered that someone still uses, never mind remembers, this earlier work.
That PowerHouse most likely has an attached track that will accept coal. From memory it probably unloads as you drive slowly over it. But the question is - did I actually connect to that attached track or did I just use my own interactive track somehow located over the top of it? If it's the latter you will not be able to satisfy that waybill.
Sorry I can't say more. I don't have TS12 installed. In fact I'm not sure where I placed the installation disk. Good luck.
Phil