How to upload images to MySql database.

Hey guys so i created a insert form in dreamweaver to add to a database, its workin fine but i want to add another field to browse for and add a small image of the item. I created my insert form with a wizard and I'm not sure how to add an image uploader to it. I have a blob field in my database called "image" I'm just not sure how to add to it from my form.  Here is the code for my insert page so far:

<?php require_once('../Connections/cbdb.php'); ?>
<?php require_once('Zend/Date.php'); ?>
<?php
if (!isset($_SESSION)) {
  session_start();
}
$MM_authorizedUsers = "";
$MM_donotCheckaccess = "true";

// *** Restrict Access To Page: Grant or deny access to this page
function isAuthorized($strUsers, $strGroups, $UserName, $UserGroup) {
  // For security, start by assuming the visitor is NOT authorized.
  $isValid = False;

  // When a visitor has logged into this site, the Session variable MM_Username set equal to their username.
  // Therefore, we know that a user is NOT logged in if that Session variable is blank.
  if (!empty($UserName)) {
    // Besides being logged in, you may restrict access to only certain users based on an ID established when they login.
    // Parse the strings into arrays.
    $arrUsers = Explode(",", $strUsers);
    $arrGroups = Explode(",", $strGroups);
    if (in_array($UserName, $arrUsers)) {
      $isValid = true;
    }
    // Or, you may restrict access to only certain users based on their username.
    if (in_array($UserGroup, $arrGroups)) {
      $isValid = true;
    }
    if (($strUsers == "") && true) {
      $isValid = true;
    }
  }
  return $isValid;
}

$MM_restrictGoTo = "login.php";
if (!((isset($_SESSION['MM_Username'])) && (isAuthorized("",$MM_authorizedUsers, $_SESSION['MM_Username'], $_SESSION['MM_UserGroup'])))) {  
  $MM_qsChar = "?";
  $MM_referrer = $_SERVER['PHP_SELF'];
  if (strpos($MM_restrictGoTo, "?")) $MM_qsChar = "&";
  if (isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING']) > 0)
  $MM_referrer .= "?" . $_SERVER['QUERY_STRING'];
  $MM_restrictGoTo = $MM_restrictGoTo. $MM_qsChar . "accesscheck=" . urlencode($MM_referrer);
  header("Location: ". $MM_restrictGoTo);
  exit;
}
?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;   
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      if ($theValue == "")
   {
    $theValue = "NULL";
   }
   else
   {
    $zendDate = new Zend_Date($theValue, "d/M/yyyy");
    $theValue = "'" . $zendDate->toString("yyyy-MM-dd") . "'";
   }
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}
}

// *** Redirect if username exists
$MM_flag="MM_insert";
if (isset($_POST[$MM_flag])) {
  $MM_dupKeyRedirect="stock_already_exist.php";
  $loginUsername = $_POST['registration'];
  $LoginRS__query = sprintf("SELECT registration FROM stock WHERE registration=%s", GetSQLValueString($loginUsername, "text"));
  mysql_select_db($database_cbdb, $cbdb);
  $LoginRS=mysql_query($LoginRS__query, $cbdb) or die(mysql_error());
  $loginFoundUser = mysql_num_rows($LoginRS);

  //if there is a row in the database, the username was found - can not add the requested username
  if($loginFoundUser){
    $MM_qsChar = "?";
    //append the username to the redirect page
    if (substr_count($MM_dupKeyRedirect,"?") >=1) $MM_qsChar = "&";
    $MM_dupKeyRedirect = $MM_dupKeyRedirect . $MM_qsChar ."requsername=".$loginUsername;
    header ("Location: $MM_dupKeyRedirect");
    exit;
  }
}

$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
  $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}

if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form1")) {
  $insertSQL = sprintf("INSERT INTO stock (make, model, `year`, cc, fuel, doors, body, `date`, registration, keywords) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)",
                       GetSQLValueString($_POST['make'], "text"),
                       GetSQLValueString($_POST['model'], "text"),
                       GetSQLValueString($_POST['year'], "text"),
                       GetSQLValueString($_POST['cc'], "text"),
                       GetSQLValueString($_POST['fuel'], "text"),
                       GetSQLValueString($_POST['doors'], "text"),
                       GetSQLValueString($_POST['body'], "text"),
                       GetSQLValueString($_POST['date'], "date"),
                       GetSQLValueString($_POST['registration'], "text"),
                       GetSQLValueString($_POST['keywords'], "text"));

  mysql_select_db($database_cbdb, $cbdb);
  $Result1 = mysql_query($insertSQL, $cbdb) or die(mysql_error());

  $insertGoTo = "stock_added.php";
  if (isset($_SERVER['QUERY_STRING'])) {
    $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?";
    $insertGoTo .= $_SERVER['QUERY_STRING'];
  }
  header(sprintf("Location: %s", $insertGoTo));
}

mysql_select_db($database_cbdb, $cbdb);
$query_rsStock = "SELECT * FROM stock ORDER BY stockId ASC";
$rsStock = mysql_query($query_rsStock, $cbdb) or die(mysql_error());
$row_rsStock = mysql_fetch_assoc($rsStock);
$totalRows_rsStock = mysql_num_rows($rsStock);
?>