I made a temple to issue a site for all images to Google webmaster tools. It's in the SVN at in the templates directory.
to call it, tell google to get sitemap something like
http://www.fantasyartwork.net/index.php?option=com_rsgallery2&task=xml&xmlTemplate=xml_google_sitemap&gid=11for one of mine, or leave off the GID to send a list of all published images
note: it uses the old method of creating the xml (output .= data), don't know how to do the new buffering method, if anyone can shed some light, please advice.
Also how do you read template parameters in a xml template??
Thanks