I think I’m having a version of your issue LF, but I’m not nearly as competent as you in trying to troubleshoot. I’ve uploaded the Freedom – Green & Widgetized theme from the theme directory. The “about” box is managed from the sidebar.php file, but when I try to make changes to this file in the WP theme editor I get “The requested theme does not exist.” error message. The theme is in place on my (empty) blog, so I’m not sure what doesn’t exist. (blog.irishviolet.com)
If I understand what you did, do I need to download the theme folder, make the changes on my desktop, rename the file and re-upload?
thanks,
Tim F.