If you want to work satellites, will need to know where they are located in the sky. That is what the Satellite Tracking Software does for you. There are several nice ones, I just happen to use WinOrbit. Also its free! WinOrbit is a good program, but takes a little time getting used to it, and learning the terms.
There is a Y2K bug in WinOrbit versions 3.5 and earlier. If you have one of these versions, please use the link above, and download the latest version.
A couple of pointers to start out.