แก้ไขข้อมูลที่ upload รูปไว้ก่อนแล้ว รูปหาย ผมไม่ค่อยเป็นเรื่อง php อ่ะนะครับ พอดีเว็ปมีปัญหาเรื่องการแก้ไขข้อมูล

<?
							}
							Closedb();
							
						} else if($mode=="edit")
						{

							list($day2,$month2,$year2,$time2) = explode("/",date("d/m/Y/His"));
        					$year2 = $year2 + 543;

							$uploaddir = 'images/places/';
							$uploadName = $year2.$mont2.$day2.$time2.substr($_FILES['picture']['name'],-4);
							$uploadfile = $uploaddir . $uploadName;
							$size = $_FILES['picture']['size'];

							if($size > 0)
							{
								if (($_FILES["picture"]["type"] == "image/gif") || ($_FILES["picture"]["type"] == "image/jpeg") || ($_FILES["picture"]["type"] == "image/pjpeg"))
								{
									if( $size < 250000)
									{
										move_uploaded_file($_FILES['picture']['tmp_name'], $uploadfile);
										$chkInsert = "yes";
									}
									else
									{
										echo "<script>alert('ขนาดรูปต้องไม่เกิน 250 k')</script>";
									}
								}
								else
								{
									echo "<script>alert('รูปต้องเป็น .gif และ .jpg เท่านั้น')</script>";
								}
							}
							else
							{
								$uploadName = $picture;
								$chkInsert = "yes";
							}

							if($chkInsert == "yes")
							{

								$id = $_REQUEST["id"];
								$topic = $_REQUEST["topic"];
								$password = $_REQUEST["password"];
								$detail = $_REQUEST["detail"];
								$open = $_REQUEST["open"];
								$kind = $_REQUEST["kind"];
								$howto = $_REQUEST["howto"];
								$typesum = $_REQUEST["typesum"];
								$werning = $_REQUEST["werning"];
								$price = $_REQUEST["price"];
								$address = $_REQUEST["address"];
								$tel = $_REQUEST["tel"];
								$email = $_REQUEST["email"];
								$section = $_REQUEST["section"];
								$province = $_REQUEST["province"];
								$name = $_REQUEST["name"];

								list($day,$month,$year,$time) = explode("/",date("d/m/Y/H:i:s"));
								$year = $year + 543;
								
								Connectdb();
								$sql = "update well set topic = '$topic',password = '$password',detail = '$detail',open = '$open',kind = '$kind',howto = '$howto',typesum = '$typesum',werning = '$werning',price = $price,address = '$address',tel = '$tel',email ='$email',section = '$section',province ='$province',picture ='$uploadName',name ='$name' ,timestamp = '$year-$month-$day,$time' where id = $id";

								//echo $sql;
								$result = mysql_query($sql);
							}
							
							if($result > 0 && $chkInsert == "yes")
							{
							?>