ถามเรื่อง ส่งค่า mysql_insert_id(); หน่อยคับ คืองี้ มีตารางอยู่ 2 ตาราง

<div id="col-seven">
            <ul><li><a href="application_form.php?apply=<?=$rec['id_job'];?>">apply</a></li></ul>
</div>

<?php
	$sql="select * from ty_listdetail where id_job='$_GET[apply]'";
	$q=mysql_query($sql) or die (mysql_error());
	//echo $sql;
	while($rec=mysql_fetch_assoc($q)){
	
?>
<br />
<div id="maincontent">
<div id="title">
	<p>Toscana Valley Co.,Ltd. And Valley Group Compant<br>
	The Application is part of the consideration, Please fill out Completely.</p>
</div><br>
<div id="resume">
	<form action="application.php" method="post" name="application_from" target="_parent" enctype="multipart/form-data">
    <p>Resume :&nbsp;<input name="resume_file" type="file" size="30"></p>
</div>
<div id="salary">
<p>Experted Salary : &nbsp;<input name="expec_salary" type  ="text" size="20" maxlength="6">&nbsp;Apply Position : <strong><?=$rec['position'];?></strong></p>
</div>
<?php }//while ?>
<div id="personal">
    <p><img src="p/personal background.png" width="900" height="44" /></p>
</div>
<div id="bg">
<div id="personal_bg">
  <div id="personal_layout">
  	<ul>
    	<li>&nbsp;</li>
    </ul>
    <ul>
    	<li>
        Prefix :
        <select name="prefix.">
        	<option value=""></option>
        	<option value="Mr">Mr.</option>
            <option value="Ms">Ms.</option>
            <option value="Mrs">Mrs.</option>
        </select>
        </li>
        <li>Name : <input name="txt_name" type="text" size="30" /></li>
        <li>Surname : <input name="txt_surname" type="text" size="30" /></li>
</form>
</div>

$sql="insert into ty_application(id_job,experted_salary,resume_file,prefix,name,surname)values('$_POST[expec_salary]', '$_POST[resume_file]','$_POST[prefix]','$_POST[txt_name]','$_POST[txt_surname]') where id='$_GET[apply]' ";
$q=mysql_query($sql) or die (mysql_error());