The new site looks like it has some hidden embedded tags in the code that needs to be removed.
Gizmo needs to fix it.
Anyway try this with out any spaces or line feeds.
Code
/* PHP CODE HERE, IF NECESSARY */

/* DO NOT CHANGE THE LINE BELOW */
$body = <<<EOF

Body of the custom box here

EOF;
/* DO NOT CHANGE THE LINE ABOVE */

Blue Man Group
There is no such thing as stupid questions. Just stupid answers