xoscope: digital oscilloscope

I am an absolute "babe in the woods" when it comes to Linux. Recently I did take the plunge and installed Mandrake on my Laptop. There are two windows applications I cannot live withouth. One is an oscilloscope. I have a "scope 4pc" which is quite good. I will be more than happy to test software on this scope. It is a 4 channel paralell port setup. I have no clue as to how it communicates with the PC.