We'll create fresh WordPress site with Simple Multisite Sitemaps installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin, once activated, generates a sitemap.xml on-the-fly for every site in a multisite network. The sitemap of every site in the multisite only contains location entries which are related to that particular site. The individual sitemaps don’t contain traces to other pages in the same network.
This plugin is released under the conditions of the GPL license. You’re free to use it free of charge on your personal or commercial blog.