For installation instructions, please refer to the User Manual.
You can also download the last source version from the SVN repository.
To do so, you can :
- Checkout the SVN repository : svn checkout https://torrent-search.svn.sourceforge.net/svnroot/torrent-search/trunk/
- Download the SVN snapshot as tarball : http://torrent-search.svn.sourceforge.net/viewvc/torrent-search/trunk/?view=tar
The version from the SVN repository is not stable (and might not even work at all).