I browsed around the forum that is linked on that site and Velleman wrote that they are developing a kit specially designed to do some first experimenting and learning with that scope (but I see no reason why it wouldn't work with another one).
However, the working of a scope and even more what the results on screen actually mean is something you can't simply learn in an evening.... you have to know what the signals should be and compare to what you see on the screen...