I have added two new pages but in spite of seeing them on my sitemap they do not show when I look at the site. I have saved and published I think. Please help me.
The page is there but isn't showing in the menu. You need to go to the edit page and tick the option Include in navigation menu, then save and publish the change, and you'll find that it appears in the menu.
There's more information on editing pages in the CMS Documentation.
Joe - Voice Admin