I have used that plugin before myself and ended up creating my own plugin to help optimize more of the title and meta tags information.
You can get it here at: WordPress SEO plugin
I have a great plugin for SEO that actually optimizes your titles and meta tag information, as well as your RSS link feeds for auto discovery
You can get it here at: WordPress SEO plugin
I think installing my WordPress SEO plugin should be listed… it helps take care of your head section for you by adding the other RSS and ATOM links, optimizing your meta keywords and descriptions based on the content of your site and page, and optimizing your title of your pages and site with relevant content from your page.
You will need Ultimate Tag Warrior installed as well…
but you can get the plugin at:
http://www.marketingop.us/plugin-page/seo-wordpress-plugin/