I have three sites working off of one WP install tridenthotel.com tridenthotel.com/weddings tridenthotel.com/golf -- I only just realised that you need to put a black file sitemap.xml in the root for this to work. All three sites work off the same root. So I if you generate a sitemap.xml for any of the other sites, it overwrites the first. Is there any way around this?