WordPress provide lot of plugins to help you change the layout or function from your wordpress. There are many plugins aviliable, you can download in the same way, like meta tag plugin which you can download in http://www.g- loaded.eu/2006/01/05/add-meta-tags-wordpress-plugin/ and also plugin for google analyticator in http://cavemonkey50.com/code/google-analyticator/ this is how to install SEO Title Tag Plugin You can download the SEO Title Tag from http://www.netconcepts.com/seo-title-tag-plugin/ 
