file paths messed up

I recently moved my blog from one url to a new url. My hosting company said to do this just add two lines to your wp-config.php file

define(‘WP_HOME’,’http://newDomain.com’);
define(‘WP_SITEURL’,’http://newDomain.com’);

which I did and WP now appears with my content at the new url.

My problem is the header images and sidebar image widgets are broken.

When I try to reset the header image it stays broken. I’m sure that the path is broken somewhere but I can’t figure out how to fix it.

The old url is phoenixwestvalley.andybennett.us

and the new one is phoenixwestvalley.com

any input appreciated.