phpBB SEO Premod for phpBB3 support forum. This premodded version of phpBB3 includes the three different type of URL rewriting for phpBB3 by phpBB SEO. It comes with several other Search Engine Optimization mods installed.
You should only upload the root/ dir content, to where you want to install phpbb.
The contrib dir contains files that could be useful for specific install cases as well as a sample robots.txt, but they are not needed to run the premod.