Anyone can learn how to do these installs with existing plugins. It's one thing if they come with custom plugins that require programming, but if not, a simple search in Google and less than an hour of time can give you the same results.
Thousands of free Wordpress themes:
http://themes.wordpress.net/
SEO plugins:
http://www.google.co.cr/search?q=wor...ient=firefox-a
Seems as though webmasters spend so much time trying to manipulate Google that they forget to use it for the amazing resource that it is.