Patrik,
What theme are you using? As a developer I have edited the actual theme sources. Meaning the Header.php file for typical themes. Or use php scripts for frameworks.
If your theme has the header.php file then you can edit this file where you see the title. Again it depends on the theme that you are using.
Nothing works on my site when I put a post up. I had to go back to the older version. And that doesn’t even work. Whenever sitemap is turned on, every page on the website turns to a 404 not found page.
I guess the only option is not to use your sitemap. This issue can be seen going back over 6 months. The SEO part is more important then the sitemap part, since there are other ways to do that easily.
Thanks for a great plugin, I hope all these bugs get fixed soon.