Hi – I noticed you have a sitemap.php file. Can you say a bit more about what this does. Specifically, I would like to know if you are creating a sitemap.html file and where I can find it. Google Webmaster Tools is saying I don’t have a sitemap.html file which may be the case!
Yes, you are correct the XML is looking for the XML first, but both Google Webmaster discussions and Yoast both state that the spiders will crawl your sitemap to help get a better idea of how your site information is interconnected.
I would also like to link the sitemap to the 404 page not found page as a convenience.
In any case, I would still like to know where your sitemap.php is putting its file and how to view it and how to use it.