Sorry, I'm not setup to make a video right now. I'm guessing that English isn't easy for you. Don't worry.
Simplest way to install Trainmaster requires:
- working Railroad Tycoon 3 (1.05) install, (most sources have Coast to Coast pack already, to check, look for the scenario "Alternate USA")
- Trainmaster V-1.0 MSI Installer - 126.61 MB from this page:
http://hawkdawg.com/rrt/rrt3/TM/
Copy entire Railroad Tycoon 3 folder, name that "Trainmaster."
Double click on the Trainmaster_1_1.zip file you dowloaded.
Move the installer named "tmaddone" into the folder you just created.
Run "tmaddone". When prompted change Destination Folder to the correct location.