You should remove your FB info from the thread now that your issue is resolved.
Just in case anyone comes across this thread and needs the info,
I added an image to my error page by adding this code to my 404.php over my header tags:
[…<img class=”aligncenter size-thumbnail wp-image-7938″ src=”http://example.com/wp-content/uploads/2014/04/sad-kitty-300×187.png” alt=”sad-by-Apple-Nek”/>…]
Obviously I used my real image path rather than the example path shown above.
Make sure you don’t include the [… and …] when you cut & paste.
