Google analytics tracking code

I am trying to get google analytics to run on wordpress for my website http://www.jwflyfishing.com. The instructions tell me to Copy the following code, then paste it onto every page you want to track immediately before the closing </head> tag. I only have two pages in the page edit screen and that is a photo page and about us page. Where do I insert the script for the home page and all others? All help is greatly appreciated.
JW