Re: Sitemap hosted on another server?

"The domains match" is not enough. The complete server name must match,
and there are very good reasons why it can't work as you're suggesting.

If you can't upload files, you should not mess with services which
require it. Where do you complain because you can't upload a robots.txt
file? Right, at your host. So please write a polite letter to
sitekreator.com and ask them for Sitemaps support.

Sebastian