So the download version on the website is a version 2 beta, and everyone on the forums is talking about a version 3 beta…
Is there a stable version 2 somewhere, or a web-based cvs browser to get a copy of version 3?
You might want to try to get the sources from SVN. For this good client is TortoiseSVN, from toirtoisesvn.net, in case you would be using Windows OS.
Command line would go like this:
svn co http://svn.igniterealtime.org/svn/repos/xiff/trunk/src/org org