Need help with HTTP Post to WCF service

Need help with HTTP Post to WCF service

Im in over my head here and hope someone can/will help. I need to post a form to a WCF service via HTTP Post. The form will validate (easy to do) and upon the servers response populate a div with a success or error msg. I can do this on our own server via .ajax submit but can't get it to work here. Do I need to use .json, .jsonp? Here is what I have and its not working at all
//validation placement settings
$.ajax({
                url: "https://xxxxxx.com/Reseller/POST.svc/Cancel",
                type: "post",
                data: data,
                dataType: "html",
                success: function(data) {
                    var answer = $(data).find("td:eq(4)").text();
                   
                    if (answer==="TRUE") {
                        $("#resetPassword").remove();
                         $("#resetSuccess").fadeIn("slow");
                    } else {
                        $("#resetPassword").remove();
                         $("#resetError").fadeIn("slow");
                    }
                }
                });
            return false;
           
           },
//rules and msgs

the form returns the success flag in a table in the 4th td
any help will be greatly appreciated.
Thanks!