I'm not sure why they asked you to park there because so far as I know it wasn't used by the excursion operator. I happened to be standing on the open gondola as the train was getting ready to depart Chama and took this photo from there. I gave you a print years ago, but if you need another, let me know. It prints nicely.
Regarding the advertisement, it was for The Territory Ahead's catelog. One year they did a railroad theme and they wanted to prominently feature the C&TS. They came to the railroad and did some shooting, but they also wanted photos of railroaders. They were big on that. I sent them this one and they did use it. Except they cropped you out. And yes, they told me it was because you were smoking and evidently that wasn't in keeping with their image. Of course, it could also have been because I didn't have a model release. :-) They didn't use any photos at all with railroaders in them, as I recall.