help coding on auction email

[rando84]

hey I can get the winning email to work as long as the bidder stays logged in to the item page. when they log out it doesnt pick a customer id. I think it is because of the code

where products_id = '" . (int)$_GET['products_id'] . "'"; 

, can anyone help me and tell me how to change it and make the code pull the info from the database right or what i need to do in order to start a path for this thing to start working????

global $db;
// get the current highest bid
$sql = "select customers_id
    from  " . TABLE_PRODUCTS_AUCTION . "
    where products_id = '" . (int)$_GET['products_id'] . "'";
    $auction_info = $db->Execute($sql);
    $customer_high_bidder = $auction_info->fields['customers_id'];
    $last_bid = $db->Execute("select customers_id, customers_firstname, customers_lastname, customers_email_address
    from  " . TABLE_CUSTOMERS . "
    where customers_id = '" . (int)$customer_high_bidder . "'
                                     ");