I’ve been hearing panic and frustration from some people who upgraded to WordPress 3.0 and now can’t access the custom file editor in the Thesis control panel, so, I wanted to let you know how to fix it.
That said, if you want to use the built-in editor, it’s easy to fix. You’ll need to get access to your files through FTP or through your Cpanel file manager. Once you’re logged in, navigate to themes/thesis/lib/admin/admin.php and open the admin.php file.
On line 42, you’ll see the following:
if (use_codepress()) add_action('admin_print_footer_scripts', 'codepress_footer_js');.
Add two slashes at the beginning of that line. It will look like this (click the photo to enlarge it):
That’s it. Adding the two slashes is called “commenting”, and tells your browser to ignore that line. Save the file, and you will now be able to edit your files from within the built-in editor.
If you have questions, don’t hesitate to ask in the comments!