PHPMailer - No success page or send copy to sender

PHP
1

I don’t know what to do as to why it is missing or not redirecting to a success page after sending.


<script type="text/javascript">
(function($,W,D)
{
    var LOGICSART = {};

    LOGICSART.UTIL =
    {
        setupFormValidation: function()
        {
            //form validation rules
            $("#register-form").validate({
                rules: {
                    name: "required",
					phone: "required",
					subject: "required",
					comments: "required",
                    email: {
                        required: true,
                        email: true
                    },
                },
                messages: {
                    firstname: "Please enter your name",
					phone: "Please enter Phone number",
                    comments: "Please comment or ask a question",
                    subject: "Please select a subject",
                    email: "Please enter a valid email address"
                },
                submitHandler: function(form) {
                    form.submit();
                }
            });
        }
    }

    //when the dom has loaded setup form validation rules
    $(D).ready(function($) {
        LOGICSART.UTIL.setupFormValidation();
    });

})(jQuery, window, document);
</script>
</head>

<body>

<?php
$name = '';
$phone = '';
$email = '';
$subject = '';
$comments = '';
if(isset($_POST['subm'])) {
$error = array();
$data = array();
include "datafunction.php";

/*Please modify variable values according to requirement*/
$min = 3;   //Min length of string
$max = 20;   // Max length of string
$maxc = 300;   // Max length of string
$receiverEmail = 'luck@bluebird.com';   //Set Email Receiver Email address
$receiverName = 'Joe';   //Set Email Receiver name
$FromEmail ='';  //Set From Email
$FromName = '';  //Set From name
$mailSubject = 'Mail for website';  //Set Email subject
/*End*/

foreach($_POST as $key=>$val)
{
	if($key=='name')
	{
		if(validBlank($val) == 1)
		{
			$error[] = "Name cannot blank";
		}
		$checkLength = validStrLen($val,$min,$max);
		if($checkLength!=1)
		{
			if($checkLength == 'short') {
				$error[] = "Name is too short, minimum is ".$min." characters (".$min.", ".$max.")";
			} else {
				$error[] = "Name is too long, maximum is ".$max." characters (".$min.", ".$max.")";
			}			
		}
		$name = fnSanitizeStringr($val);
	}
	
	if($key=='phone')
	{
		if(validBlank($val) == 1)
		{
			$error[] = "Phone number cannot blank";
		}
		$validation = new PhoneValidation();
		$isvalidPhone = $validation->validate('phone',$val);
		if($isvalidPhone != 1)
		{
			$error[] = 'Phone number is not in valid US Format';
		}
		$phone = $val;
	}
	if($key=='email')
	{
		if(validBlank($val) == 1)
		{
			$error[] = "Email address cannot blank";
		}
		$val = fnSanitizeEmaill($val);
		$test = new EmailValdation;
		$test->email = $val;
		if($test->checkEmailDomain() == 0) { //Check DNS of Email Address
			$error[] = 'Invalid email address';
		}
		$email = $val;
	}
	if($key=='comments')
	{
		if(validBlank($val) == 1)
		{
			$error[] = "Comments cannot blank";
		}
		echo $checkLength = validStrLen($val,$min,$maxc);
		if($checkLength!=1)
		{
			if($checkLength == 'short') {
				$error[] = "Comments field is too short, minimum is ".$min." characters (".$min.", ".$max.")";
			} else {
				$error[] = "Comments field is too long, maximum is ".$maxc." characters (".$min.", ".$max.")";
			}			
		}
		$comments = fnSanitizeStringr($val);
	}
	
	
	$data[$key] = _clean($val);
}
if(count($error) > 0)
{
	echo '<div class="error"><ul>';
	foreach($error as $er)
	{
		echo '<li>'.$er.'</li>';
	}
	echo '</ul></div>';
}
else {
$msg = "<table><tr><td>Name:</td><td>".$data['name']."</td></tr>
<tr><td>Phone:</td><td>".$data['phone']."</td></tr>
<tr><td>Email:</td><td>".$data['email']."</td></tr>
<tr><td>Subject:</td><td>".$data['subject']."</td></tr>
<tr><td>Comments:</td><td>".$data['comments']."</td></tr></table>";
	require 'mailer/PHPMailerAutoload.php';
	//Create a new PHPMailer instance
	$mail = new PHPMailer();
	// Set PHPMailer to use the sendmail transport
	$mail->isSendmail();
	//Set who the message is to be sent from
	$mail->setFrom($FromEmail,$FromName);
	//Set who the message is to be sent to
	$mail->addAddress($receiverEmail,$receiverName);
	//Set the subject line
	$mail->Subject = $mailSubject;
	//Read an HTML message body from an external file, convert referenced images to embedded,
	//convert HTML into a basic plain-text alternative body
	$mail->msgHTML($msg);
	//send the message, check for errors
	if (!$mail->send()) {
		echo "Mailer Error: " . $mail->ErrorInfo;
	} else {
		header("Location: thank_you.php");
	}
	}

} ?>

1.) I have tried it as thank_you/
http://www.domain.com/thank_you/

in the } else {
header(“Location:…” no good.

1a.) I really don’t want to use: " else { echo ‘Message has been sent.’; }"

the site displays as www.domain.com/thank_you/

2.) I want to send back to the sender what they submitted to
3.) also, it shows constantly as "Root User <root@localhost> " instead of the sender’s own email address in the mail inbox.
How do I change that?

Thanks

2