I'm not sure what "moving on the tracks" means, unless the edge of the station is sitting on the track.
And where is the track not right?
In any case, it's a built-in layout that came with the game, so there's nothing on the DLS to be fixed.
Since it's on your hard drive, you can do whatever you want with it. Move the stations, change the tracks around, replace the industries with pre-designated industries like container ports and coal mines. I've added a few extra tracks to the yard at Wadalbavale in various gauges, and I'm currently using it to sort through the rolling stock I've downloaded to make lists of assets in various gauges (and some superfluous stock to be deleted).
When you've fixed it up the way you like it, show us some screen shots of what you did. We can always use good ideas in our projects.