This one should work:
Downloads II vBSEO Extension
This is a discussion on DownloadsII v6 Sitemap Plugin within the General Discussion forums, part of the vBSEO Google/Yahoo Sitemap category; Hello, This one should work: http://www.vbseo.com/f23/downloads-i...tension-16269/...
Google is reporting this, "We were unable to read your Sitemap. It may contain an entry we are unable to recognize. Please validate your Sitemap before resubmitting."
Getting this only for the "/sitemap_addon_1.xml.gz" when I add this addon for downloadsii.