I was going to let this thread die, but it keeps getting bumped up, so....
This scenario was made a long time ago for a version of vanilla Civ 3 (don't remember which version now). This is before PTW was released. So if you try to play this scenario using the latest version of vanilla Civ 3, or Conquests, it isn't going to work right.
Back when this was made the editor was far less powerful than it is now. There was no way to place cities or units. It was basically a glorified map editor. I have no intention of doing an updated version.
This scenario was not inspired by Alien Legacy, though it does appear that there are some similarities between them. I did use many of Blue-O's excellent sci-fi units, which Alien Legacy uses as well.