giam, even though you have no intention of using iso, I would leave the script there as gtbs relies on it to a small degree, mostly for checking what method to use. However you are free to remove the tileset and use the default. It was just given as an example of iso based maps.
fustel, I will need a demo to figure what the problem is.
coprolalia, the line skills part is already complete. The help file may not be up to date though. Look in the demo for the dash skill and its setup to use line skills.
gimnis, you error is because you didnt copy all of the scripts OR you didnt place them in order. I would recopy the scripts to make sure that you have them in the correct order as in the demo.