Specifying the Sitemap location in your robots.txt file
You can specify the location of the Sitemap using a robots.txt file. To do this, simply add the following line:
Sitemap: <sitemap_location>
The <sitemap_location> should be the complete URL to the Sitemap, such as:
http://www.example.com/sitemap.xml
This directive is independent of the user-agent line, so it doesn't matter where you place it in your file. If you have a Sitemap index file, you can include the location of just that file. You don't need to list each individual Sitemap listed in the index file.
Hopefully this will help with the as of yet useless MSN.