Adds the built in WordPress categories and tags to your pages.
Post Tags and Categories for Pages adds the stock WordPress categories for all of your pages. Pages will show up in the stock WordPress archive queries.
This WILL NOT add any display of categories or tags to your template files. There are simply to many ways that things could be displayed in a theme so we don't do it. If you need to add this then look at using WordPress functions like the_category() and other category or tag function supplied in WordPress.