// 無料商品購入時、自動で入金済にさせる
if($this->arrForm['payment_total'] > 0) {
  //まずは新規受付で受注を作成
  $objPurchase->completeOrder(ORDER_NEW);
　// ポイント商品購入時、自動で発送済に
　if ($this->arrForm['deliv_id'] == 1){
　　$objPurchase->sfUpdateOrderStatus($this->arrForm['order_id'], ORDER_DELIV);
  }
  //必要に応じてステータスを新規受付に戻す
  //$objPurchase->sfUpdateOrderStatus($this->arrForm['order_id'], ORDER_NEW);
}
else
　$objPurchase->completeOrder(ORDER_PRE_END);