Some Clueless Dude

So, I've done some basic browsing through the web to answer my problem, and I continually run across something about needing an IMG for this game to work properly. I've never encountered that problem before, at least as far as I recall.

I've downloaded the Stone Prophet game from online; I initially assumed that was all I would have to do before moving it to my Oldgames folder and trying to install the game. My command lines were simply...

mount c c:\oldgames
c:
ravenlo2

And from there I can't install or use the game, I think because I don't have the IMG file I've read about. Where do I get that file, and how do I go about installing the game once I have it?

Thank you in advance for your help.