Works fine by me. added the two tags and turned the addon on and works fine.
Only problem is on main page, which seems to come from the <next> and <previous> button. (a layer problem)
Tags: <MEDIARSS_AUTODETECT_LINK> - Renders a <link> tag with a location for the MediaRSS feed. Add this tag between the <HEAD> and </HEAD> tags in your image_template.html and browse_template.html.