Andy,
I'm willing to bet you have a hotlinking solution implemented in your .htaccess file or through your cPanel. Basically this says don't serve up images unless the referring URL is http://www.spazthecat.com. Since you changed the URL, the access to the images is being blocked.
If I try to reference an image directly on your site I get a 403 Forbidden error, so that tells me they are there, but the web server says I can't see them.
Thanks!
Mark