Site Hopper is free software; it is distributed under the GNU Affero General Public License.
The latest version of Site Hopper can be downloaded by clicking on the link below.
Unzip and copy into a directory of your web server. The GUI is invoked by calling the index.php from a web browser.
If the version above does not fit your needs, or to get the most recent source code, visit the Sourceforge.net download page for additional versions and releases.