The install script is designed to be run once you have SambaPOS up and running in your production environment.
As it is right now, if you change the database connection or location of the SambaSettings.txt file, after you have run install.vbs, the training scripts will not work.
I will change this to read the settings each time you run training mode, that way if you change databases or location of the settings file, it will work it out and run training mode.