I haven't had the time to meet the requirements of submission for WordPress 3.x so there hasn't been a new submission. However, there are a couple of options:
1) Header images are supported in the current theme here--just upload a GIF images to wp-content/themes/dragonskin/images/header.gif
That's not good if you're running multiple sites (wpmu), so...
2) You can download my latest version (that I use) which was not approved for listing at wordpress.org due to not meeting various requirements:
http://bitfreedom.com/dragonskin/
It supports header images in the admin panel. Please note that the header image for this theme *replaces* your title text and was designed to support site logos.
For an example: http://heroesonly.com/