I'm having some trouble adding XML sitemaps to Bing Webmaster Tools. I'm using the same sitemaps I use with Google, but I'm unable to add xml.gz sitemaps (it's a vBulletin forum with VBSEO, so the .xml.gz sitemaps are actually URL rewrites to a php script that generates the sitemap, not sure if this is the issue).
And some of the other sitemaps (just raw .xml files this time) come up with "unsupported feed" errors (the same sitemaps work in Google Webmaster Tools, which I'm assuming uses the same sitemap.org schema?). I've resubmitted those to see if it helps.
Is there anything else I need to do to ensure XML sitemap compatibility?