When I visit my sitemap at the url specified in Google XML Sitemaps' settings page, I get a 404. It's been a while since I've done anything with it, but I'm pretty sure it was there at some point. Says it was last updated on the 16th. Is there anything I can look for on the debug mode that could shed some light on this mystery?
http://wordpress.org/extend/plugins/google-sitemap-generator/