In the few I checked, of the 165 products, master ID is 0. I assume the rest are too.
-- Host: localhost
-- Generation Time: Dec 26, 2010 at 09:55 PM
-- Server version: 4.1.22
-- PHP Version: 5.2.9
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";
--
-- Database: aurora_zc1
--
-- Table structure for table zen_products
CREATE TABLE IF NOT EXISTS zen_products (
products_id int(11) NOT NULL auto_increment,
products_type int(11) NOT NULL default '1',
products_quantity float NOT NULL default '0',
products_model varchar(32) default NULL,
products_image varchar(64) default NULL,
products_price decimal(15,4) NOT NULL default '0.0000',
products_virtual tinyint(1) NOT NULL default '0',
products_date_added datetime NOT NULL default '0001-01-01 00:00:00',
products_last_modified datetime default NULL,
products_date_available datetime default NULL,
products_weight float NOT NULL default '0',
products_status tinyint(1) NOT NULL default '0',
products_tax_class_id int(11) NOT NULL default '0',
manufacturers_id int(11) default NULL,
products_ordered float NOT NULL default '0',
products_quantity_order_min float NOT NULL default '1',
products_quantity_order_units float NOT NULL default '1',
products_priced_by_attribute tinyint(1) NOT NULL default '0',
product_is_free tinyint(1) NOT NULL default '0',
product_is_call tinyint(1) NOT NULL default '0',
products_quantity_mixed tinyint(1) NOT NULL default '0',
product_is_always_free_shipping tinyint(1) NOT NULL default '0',
products_qty_box_status tinyint(1) NOT NULL default '1',
products_quantity_order_max float NOT NULL default '0',
products_sort_order int(11) NOT NULL default '0',
products_discount_type tinyint(1) NOT NULL default '0',
products_discount_type_from tinyint(1) NOT NULL default '0',
products_price_sorter decimal(15,4) NOT NULL default '0.0000',
master_categories_id int(11) NOT NULL default '0',
products_mixed_discount_quantity tinyint(1) NOT NULL default '1',
metatags_title_status tinyint(1) NOT NULL default '0',
metatags_products_name_status tinyint(1) NOT NULL default '0',
metatags_model_status tinyint(1) NOT NULL default '0',
metatags_price_status tinyint(1) NOT NULL default '0',
metatags_title_tagline_status tinyint(1) NOT NULL default '0',
PRIMARY KEY (products_id),
KEY idx_products_date_added_zen (products_date_added),
KEY idx_products_status_zen (products_status),
KEY idx_products_date_available_zen (products_date_available),
KEY idx_products_ordered_zen (products_ordered),
KEY idx_products_model_zen (products_model),
KEY idx_products_price_sorter_zen (products_price_sorter),
KEY idx_master_categories_id_zen (master_categories_id),
KEY idx_products_sort_order_zen (products_sort_order),
KEY idx_manufacturers_id_zen (manufacturers_id)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=300 ;
--
-- Dumping data for table zen_products
INSERT INTO zen_products (products_id, products_type, products_quantity, products_model, products_image, products_price, products_virtual, products_date_added, products_last_modified, products_date_available, products_weight, products_status, products_tax_class_id, manufacturers_id, products_ordered, products_quantity_order_min, products_quantity_order_units, products_priced_by_attribute, product_is_free, product_is_call, products_quantity_mixed, product_is_always_free_shipping, products_qty_box_status, products_quantity_order_max, products_sort_order, products_discount_type, products_discount_type_from, products_price_sorter, master_categories_id, products_mixed_discount_quantity, metatags_title_status, metatags_products_name_status, metatags_model_status, metatags_price_status, metatags_title_tagline_status) VALUES
(205, 1, 20, 'CMC001', 'startearlyvalues.image1.smallest.jpg', 34.9000, 0, '2009-10-19 21:40:30', '2010-02-03 03:08:42', '0000-00-00 00:00:00', 0.35, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0.0000, 0, 1, 0, 0, 0, 0, 0),
(206, 1, 20, 'CMC002', '176_Comece cedo.jpg', 34.9000, 0, '2009-10-19 22:17:11', '2010-02-03 03:15:12', '0000-00-00 00:00:00', 0.35, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0.0000, 0, 1, 0, 0, 0, 0, 0),
(207, 1, 48, 'CAJ001', 'ComAmorJesus.jpg', 29.9000, 0, '2010-01-13 18:21:59', '2010-11-16 22:57:05', '0000-00-00 00:00:00', 0.3, 0, 0, 11, 2, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0.0000, 0, 1, 0, 0, 0, 0, 0),
(208, 1, 49, 'CAJ012', 'P1130110 cropped.jpg', 29.9000, 0, '2010-01-13 19:28:37', '2010-01-13 21:24:56', '0000-00-00 00:00:00', 0.3, 1, 0, 11, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0.0000, 0, 1, 0, 0, 0, 0, 0),
(209, 1, 50, 'CAJ004', 'P1130112.JPG', 29.9000, 0, '2010-01-13 19:50:13', '2010-11-16 22:59:57', '0000-00-00 00:00:00', 0.3, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0.0000, 0, 1, 0, 0, 0, 0, 0),