The Weaver Xtreme Sitemap page template generates a page with a sitemap as the pages content. This is a page, can be used as a menu item, or you could even create a manual HTML link to it is a text widget or something.
If you previously had a sitemap in your footer, then you must have been using some other plugin. It also sounds like the Privacy Policy, and terms and conditions were added to the footer using a widget, either a text widget, or a plugin.
The thing is, a child theme is a NEW theme in the eyes of WordPress. This means that you are likely to lose all your widget assignments. They are still there in the inactive widget list, but you have to “reassign” them for the new (child) theme.