$quote=Mage::getSingleton('checkout/session')->getQuote();

       $billingAddress=$quote->getBillingAddress()->addData($this->addressData);
       $shippingAddress=$quote->getShippingAddress()->addData($this->addressData);
       $shippingAddress->setCollectShippingRates(true)->collectShippingRates()
           ->setShippingMethod('flatrate_flatrate')
           ->setPaymentMethod('checkmo');

       $quote->getPayment()->importData(array('method' => 'cc','cc_type'=>'visa','cc_number_enc'=>'4111111111111111','cc_owner'=>'Bob Men','cc_last4'=>'5687','cc_exp_month'=>7,'cc_exp_year'=>2020));
       $quote->setCustomerIsGuest(true)
           ->setCustomerGroupId(Mage_Customer_Model_Group::NOT_LOGGED_IN_ID);
       $quote->getPayment()->setMethod('ccsaved');
       $quote->getPayment()->setCcType('Visa');
       $quote->getPayment()->setCcNumber('4111222244445555');
       $quote->getPayment()->setCcOwner('Danniel N J klkj');
       $quote->getPayment()->setLast4(4242);
       $quote->getPayment()->setCcExpMonth(6);
       $quote->getPayment()->setCcExpYear(2023);


       $quote->collectTotals()->save();
       $quote->save();

       $service = Mage::getModel('sales/service_quote', $quote);
       $service->submitAll();