для версии 1.5.4.1 чуть по другому в модели
файл admin\model\catalog\category.php
13 строка
$this->db->query("INSERT INTO " . DB_PREFIX . "category_description SET category_id = '" . (int)$category_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "',description1 = '" . $this->db->escape($value['description1']) . "', seo_title = '" . $this->db->escape($value['seo_title']) . "', seo_h1 = '" . $this->db->escape($value['seo_h1']) . "'");
и 47 строка
$this->db->query("INSERT INTO " . DB_PREFIX . "category_description SET category_id = '" . (int)$category_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "', description1 = '" . $this->db->escape($value['description1']) . "', seo_title = '" . $this->db->escape($value['seo_title']) . "', seo_h1 = '" . $this->db->escape($value['seo_h1']) . "'");