I build CMS websites on the Joomla platform which comes with all sorts of SEO stuff (page specific keywords/descriptions, Google Analytics a.o). SEO optimized means that each page has RELEVANT content specific meta keywords. For instance, if you use H1 and H2 tags (headers) in your text, which I assume you do, make sure H1 and H2s contain at least 1 page specific keyword. (eg Instead of Welcome!, put something like Welcome to the music page of Santuzzo). Also make sure you don't have any dead links on your site.
Again, unless you depend on your website gathering income from page hits, you don't need to worry too much
more info: http://www.seoarticles.com/2010/02/1...f-seo-spiders/