There is a FAQ underneath the Wiki tab on that page. One of the points in there is that it is for OS X only, so you would need to have a Mac for it to work.
Among others, there is a program on the PC called ephpod that I've used in the past. It was either free or free trial because I did not pay for it. I really only used it once to recover some music on a friend's iPod for which he had lost the originals. It did work.