I was kinda curious since I hadn't played with it for a long time and wasn't sure if UO or EasyUO broke something. You'd be probably 1 of 3 people I know that have used the callback feature (Superslayer and myself being the other two) so it doesn't get much use.
Anyhow, hopefully there's enough detail there to make sure all the syntax is correct as well as the file locations.
I did notice that the rail creator didn't actually test the rails very well, so there's something I should look at.