update image ยังไงครับพอดีไม่ค่อยจะถนัดเรื่อง update imageเท่าไหร่

<?
if($_POST['submit']){

    if($_GET['action']="new"){
     header("location:test.php?test1=ok");
    }

    elseif($_GET['action']= "edit"){
           if($_FILES['image_name']['name']!= "" && $_FILES['image_name2']['name']!= ""){
header("location:test.php?test2=ok");
           }
     }
}
?>

if($_GET["Action"]=="Edit")
{
$path="images";
if(trim($_FILES["fileUpload1"]["tmp_name"]) != ""){
@unlink ("../../images/$_POST[oldpic1]");
$images = $_FILES["fileUpload1"]["name"];
$tmp = $_FILES["fileUpload1"]["tmp_name"];
$new_images1 = "model1_".$_FILES["fileUpload1"]["name"];
copy($tmp,$path."/".$new_images1);
}else{
$images = $_POST["oldpic1"];
$new_images1 = $images;
}	

$path="images";
if(trim($_FILES["fileUpload2"]["tmp_name"]) != ""){
@unlink ("../../images/$_POST[oldpic2]");
$images = $_FILES["fileUpload2"]["name"];
$tmp = $_FILES["fileUpload2"]["tmp_name"];
$new_images2 = "model2_".$_FILES["fileUpload2"]["name"];
copy($tmp,$path."/".$new_images2);
}else{
$images = $_POST["oldpic2"];
$new_images2 = $images;
}	

ใช้คำสั่ง sql ตรงนี้ได้เลยครับ