We can help you update the content on your website’s pages if you provide us the text/keywords to put in them. If you prefer to do it yourself, we also have a tutorial for that here: http://kb.restaurantengine.com/editing-pages/
As for tracking with Google Analytics, we’ll assist you in installing the tracking code on all pages on your website. You can get started with that by following our instructions here: http://kb.restaurantengine.com/how-to-get-google-analytics-tracking-code/