I have used and just tested again the Dynamic Headers
plugin. Atahalpa makes this plugin very easy to use. You just install the plugin, replace %image
with <?php show_media_header(); ?>
in ATA>Style & edit HEADER AREA>Configure Header Area. Then you go to whatever page you want to change the image for and select the picture as outlined in the directions for this plugin. You can choose to have a default image or not in which case there will be no header image. I'm thinking I might make this a default plugin for all my installations.