> Has anyone figured out how to do a successful callback to a cross > domain post using malsup's from plugin.
You can not make x-domain requests with ajax. Using the Form Plugin's "iframe" option you can post form data to another domain, but you can not access the response - browser security prevents this. You can use jsonp to get around x-domain issues, but then you can't "post" data, you can only "get" it. Mike