There are two things I like to apply to an installation of Joomla to improve its Search Engine Friendly (SEF) functionality.
OpenSEF
OpenSEF is a Joomla 1.0.x component that extendes Joomla’s SEF URL mechanism allowing you to define arbitary, friendly URLs for any of Joomla’s content and component items. (Installation instructions.)
Joomla SEF Patch
The out of the box installation of Joomla is not fully optimized for search engine optimising features – the Joomla SEF patch aims to improve this. You can read more about the free verson of the SEF patch.
Joomla SEF Patch is listed on the Joomla! Extensions site. It can be downloaded from http://www.joomlatwork.com/downloads/.
(Using Transmit’s Merge Folder function makes this a breeze.)
