OldHaldor, try the update and let me know if it works.
I changed the loading function a bit. It was using ASCII Encoding which may be what's causing the problems. I changed it to Default so hopefully it works now.
I also added a new feature in the Misc tab. It allows you to set a certain vehicle property to a value for all vehicles. This will allow you to set all vehicles' Monetary Value to 999999 without doing it 1 by 1.