Once google verifies domain control we start on the overview page.  We see a notice about no site map, 2 not found errors and robots.txt restricted url's.  The site map is the biggest of these problems but we need to check out the detail to be sure.  After reviewing the details for the 404 Page Not Found Errors we find they are due to the recent migration from the flash site to the Joomla CMS.  If we had backlinks established from the prior site we would want to preerve those links.  I will devote another article to preserving backlinks when migrating to Joomla 1.5.x.    Once The robots.txt error is actually due to joomla's stock robots.txt file properly protecting the Joomla subdirectories from being spidered by search engines.

While a site map is crucial for search engine optimization, the site map will only function well if the content in Joomla is optimized prior to sbmitting the site map.