Latest Stable Version
Many Linux distributions ship a version of Bluefish or make it available through their package systems. For example, Bluefish is available through the Debian apt-system and FreeBSD's ports. You may check if Bluefish is available through your favorite software installer. If Bluefish 2.0 is not available in your installer's repository, see http://bfwiki.tellefsen.net/index.php/Installing_Bluefish on the Bluefish wiki.
If you want to install directly from the binaries or get the latest code from SVN, the main source is the Bluefish website, where the software and a few contributions are available. The download page is reachable at http://bluefish.openoffice.nl/download.html. Here, you may download the source code and binary packages for Debian, Fedora, AltLinux, Ubuntu, and Windows.