Hi,
In w3 total cache, please *do not* use the css or javascript minification feature and make sure that you are *not* in development mode. (click view source and on bottom of the page you will see a few lines from w3 which state if you are in development or live)
There are now quite a few cache plugins in the wordpress repository with a large user base that you should consider if you don't want to invest the time in configurating w3cache (which is a bit intimidating for fist time users but well worth understanding).
Also check the .htaccess file located at the root of your website. There are a number of directives that vast majority of Wordpress websites are missing which significantly improve performance. Use this plugin http://wordpress.org/extend/plugins/wp-htaccess-editor/ (or ftp) to see your current .htaccess file. copy the contents of http://pastebin.com/C8fCQbeG and paste it *above* everything located inside your htaccess file without deleting anything. If you have a problem that means your server hosting company has disabled critical Apache server mods and you should use ftp to replace your original .htaccess (the plugin makes a backup). This configuration should *only* be used when you have *finished* development , otherwise the cache will make development a frustrating experience.
[Edit] Ask you host if they have any cache modules they can turn on for you (XCache, Varnish, APC, or Memcached). Those are the best to speed up your website but depending on your host , most are turned off. Ask them to turn them on, (or better yet switch to any host that uses NginX instead of Apache to feel true speed).
I just notices there was a question. To move that word to the right use this css
#top .sub_menu {
float: right;
}
Thanks,
Nick