The current documentation is in the following directories:

quick-start/ 
user-manual/ 
ref-manual/  

To build html and pdf version of the documents, 'makeinfo' and 'texi2dvi', part
of the GNU texinfo package, version 4.7 or higher is required.

Pre-built (and probably more current) versions of the documentation 
are available at:
	http://www.bro-ids.org/manuals.html