I recently finished a collection of import, export and effect plugins that can be used to create, load and save images as they were on the good old Commodore 64. Useful for the Commodore enthusiast as well as to give your pictures a true-to-life retro look. The filters create 100% correct "Commodore" images with all the limitations there were.
Trial version (Windows) is at http://www.editorix.org/congo/html/congo_plugins.html , registration costs Euro 10,-
Matthias