Кирилл Миченус

Вообщем решил вопрос по своему:
Добавил в "catalog\model\catalog\information.php" функцию

public function getInformationAdd($information_id) {
		$query = $this->db->query("SELECT DISTINCT *, (SELECT keyword FROM " . DB_PREFIX . "url_alias WHERE query = 'information_id=" . (int)$information_id . "') AS keyword FROM " . DB_PREFIX . "information i LEFT JOIN " . DB_PREFIX . "information_description id ON (i.information_id = id.information_id) LEFT JOIN " . DB_PREFIX . "information_to_store i2s ON (i.information_id = i2s.information_id) WHERE i.information_id = '" . (int)$information_id . "' AND id.language_id = '" . (int)$this->config->get('config_language_id') . "' AND i2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND i.status = '1'");

		return $query->row;
	}

Вызывают просто в

$page = $this->model_catalog_information->getInformationAdd($information_id);

теперь, при вызове print_r

Array
(
    [information_id] => 9
    [bottom] => 0
    [sort_order] => 5
    [status] => 1
    [language_id] => 1
    [title] => 'Заголовок страницы'
    [description] => ''
    [meta_title] => 'Заголовок страницы в метатеге'
    [meta_description] => 
    [meta_keyword] => 
    [store_id] => 0
    [keyword] => 'zagolovok-stranitzi'
)

И [keyword] - нужный мне seo_url.