Having nothing else to do for the time beeing, I thought of checking out for you and letting you know. Well, the reason you can't work out from their site is not because you don't speak Italian but because this is by far the worst tourism/transportation site I've ever visited. Or, to be precise, it reminds me of the very first "Mosaic" pages that contained colour images in the mid-nineties! The only piece of information that is really available is the distance between stations (in km). Sorry for this, perhaps some Sicilian friend will have some real info available for you (perhaps after phoning them).