Hi,
you don't have to install anything there. Just un-zip the zipped file to the location, where you want to run JavaFIBS. While unzipping, a directory called JvaFIBS2001 will be created (with a couple of sub-directories). The file to start to get JavaFIBS running is the
JavaFIBS.jar. If you create a link to that file and copy it to your desktop or the Start-Menu, you can start JavaFIBS via that link.
What you also need to run JavaFIBS is a Runtime Environment for Java. Here's the link:
http://www.java.com/en/download/windows_ie.jsp (in case you have a windows operating system).
Hope that helps.
Hardy