So, I haven't downloaded ZC 1.5.3 yet, nor tested the following; however, if it worked in 1.5.0 or 1.5.1, then it should work in 1.5.3 now... Let me know I guess. It still may not work as it has not been updated to 1.5.3 (there may be other files that need to be updated to work with the latest version.)
DELETE FROM `configuration_group` WHERE `configuration_group_title` LIKE 'Manufacturers All Config' LIMIT 2;
DELETE FROM `configuration` WHERE `configuration_description` LIKE 'Manufacturers All Listing:%' LIMIT 7;
INSERT INTO configuration_group (configuration_group_title, configuration_group_description, sort_order, visible) VALUES ('Manufacturers All Config', 'Manufacturers All Config', '1', '1');
SELECT @gida := configuration_group_id FROM `configuration_group` where `configuration_group_title` LIKE 'Layout Settings';
SELECT @gid := configuration_group_id FROM `configuration_group` where `configuration_group_title` LIKE 'Manufacturers All Config';
UPDATE configuration_group SET sort_order = @gid WHERE configuration_group_id = @gid AND @gid !=0;
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Categories Box - Show Manufacturers All Link', 'SHOW_CATEGORIES_BOX_MANUFACTURERS_ALL', '1', 'Manufacturers All Listing: Set this to 1 if you want to show the All Manufacturers link to show in the Categories Box.', @gida, '0', now(), now(), NULL, "zen_cfg_select_option(array('0', '1'),");
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Display Empty Manufacturers', 'MANUFACTURERS_ALL_EMPTY_SHOW', '0', 'Manufacturers All Listing: Set this to 1 if you want manufacturers with no products to show on the list.', @gid, '7', now(), now(), NULL, "zen_cfg_select_option(array('0', '1'),");
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Display Manufacturer Image', 'MANUFACTURERS_ALL_IMAGE_SHOW', '1', 'Manufacturers All Listing: Set this to 1 if you want the manufacturers logo to appear with the listing.', @gid, '7', now(), now(), NULL, "zen_cfg_select_option(array('0', '1'),");
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Display Manufacturer URL', 'MANUFACTURERS_ALL_URL_SHOW', '1', 'Manufacturers All Listing: Set this to 1 if you want the manufacturers URL to appear with the listing.', @gid, '7', now(), now(), NULL, "zen_cfg_select_option(array('0', '1'),");
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Manufacturers Per Row', 'MANUFACTURERS_ALL_COLUMNS', '4', 'Manufacturers All Listing: Set the number of manufacturers per row to display.<br>(default 4)', @gid, '7', now(), now(), NULL, NULL);
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Manufacturer Image Width', 'MANUFACTURERS_ALL_WIDTH', '100px', 'Manufacturers All Listing: Set the maximum width of the manufacturers image.<br>(default 100px)', @gid, '7', now(), now(), NULL, NULL);
INSERT INTO configuration (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES ('Manufacturer Image Height', 'MANUFACTURERS_ALL_HEIGHT', '100px', 'Manufacturers All Listing: Set the maximum height of the manufacturers image<br>(default 100px)', @gid, '7', now(), now(), NULL, NULL);
/*
Admin page (Zen-cart 1.5.0)
*/
INSERT INTO `admin_pages` (`page_key` ,`language_key` ,`main_page` ,`page_params` ,`menu_key` ,`display_on_menu` ,`sort_order`) VALUES
('configManufacturersList', 'BOX_CONFIGURATION_MANUFACTURERS_LIST', 'FILENAME_CONFIGURATION', CONCAT('gID=',@gid), 'configuration', 'Y', @gid);
