Jabbernaut has a Source Forge Project page set up at:
http://sourceforge.net/projects/jabbernaut

Get the latest tarball from
http://cvs1.sourceforge.net/cvstarballs/Jabbernaut-cvsroot.tar.gz

The following is required to compile Jabbernaut succesfully:

• Metrowerks Codewarrior Pro 3, 5, 6 or newer (other compilers/versions might work, too, but are untested) - http://www.metrowerks.com
• MacJLib - http://macjlib.sourceforge.net (make sure you get the latest version)
• MacZoop 2.2f1 or newer - http://www.maczoop.com
• ZSound classes - http://www.maczoop.com/madewith.html#classes
• GUSI (POSIX socket emulation lib). Get it from here.
• if you want to compile with SSL support, you need to get OpenSSL. The latest version can be obtained at http://www.openssl.org.
• patience :-)

If you have troubles, ask on the jabbernaut-devel mailing list