[Plugin: WordPress SEO by Yoast] News sitemap – custom post types not included

Hi,
my theme uses custom post types for reviews. Unfortunately, I can not get the news sitemap to include these.

I highlight them in the selection box and hit save, but the next page again shows none selected, and my news sitemap doesn’t include any of the custom post types, just normal ‘posts’. They are included in the main RSS feed. Here’s how it looks: http://yfrog.com/3rd46p

I’m a bit lost without this functionality as my site gets the majority of its traffic from reviews!

Any thoughts would be appreciated.

Caspar

http://wordpress.org/extend/plugins/wordpress-seo/