Stinky: Read the first link I sent you. There's more than one class. The example in that quote is using the class>transparent, while you want specular>reflection. READ the link I sent you. It explains all of this, and all the different classes. Never expect to give you an exact tutorial on how to do exactly what you want. The tutorial teaches you how to use materials in the ART raytracer, you have to apply it to what you want to do. It teaches you one class, it's the same method for the others with some different typing.
Also, with the link I sent, download the example files and examine the attributes, they'll show you what to do.