protected function _prepareSave(Mage_Newsletter_Model_Subscriber $subscriber)
{
$data = array();
$data['customer_id'] = $subscriber->getCustomerId();
$data['store_id'] = $subscriber->getStoreId() ? $subscriber->getStoreId() : 0;
$data['subscriber_status'] = $subscriber->getStatus();
$data['subscriber_email'] = $subscriber->getEmail();
$data['subscriber_confirm_code'] = $subscriber->getCode();
$data['salutation'] = $subscriber->getSalutation();
$data['firstname'] = $subscriber->getFirstname();
$data['lastname'] = $subscriber->getLastname();
$data['company'] = $subscriber->getCompany();
$data['address'] = $subscriber->getAddress();
$data['country_id'] = $subscriber->getCountryId();
$data['city'] = $subscriber->getCity();
$data['state'] = $subscriber->getState();
$data['phoneno'] = $subscriber->getPhoneno();
$data['fax'] = $subscriber->getFax();
$data['zipcode'] = $subscriber->getZipcode();
//ADD A NEW FIELD END
}