I was having problems also within the sql code...I have made the changes.. I hope this helps others out too.
/**
INSERT INTO zen_configuration_group VALUES (NULL, 'Zen Lightbox', 'Configure Zen Lightbox settings', '0', '1');
UPDATE zen_configuration_group SET sort_order = LAST_INSERT_ID() WHERE configuration_group_id = LAST_INSERT_ID();
SELECT @cgi := configuration_group_id FROM zen_configuration_group WHERE configuration_group_title = 'Zen Lightbox';
INSERT INTO zen_configuration (configuration_id, configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, last_modified, date_added, use_function, set_function) VALUES
(NULL, '<b>Zen Lightbox</b>', 'ZEN_LIGHTBOX_STATUS', 'true', '<br />If true, all product images on the following pages will be displayed within a lightbox:<br /><br />- document_general_info<br />- document_product_info<br />- page (EZ-Pages)<br />- product_free_shipping_info<br />- product_info<br />- product_music_info<br />- product_reviews<br />- product_reviews_info<br />- product_reviews_write<br /><br /><b>Default: true</b>', @cgi, 100, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''), '),
(NULL, 'Overlay Opacity', 'ZEN_LIGHTBOX_OVERLAY_OPACITY', '0.8', '<br />Controls the transparency of the overlay.<br /><br /><b>Default: 0.8</b>', @cgi, 101, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''0'', ''0.1'', ''0.2'', ''0.3'', ''0.4'', ''0.5'', ''0.6'', ''0.7'', ''0.8'', ''0.9'', ''1''), '),
(NULL, 'Overlay Fade Duration', 'ZEN_LIGHTBOX_OVERLAY_FADE_DURATION', '400', '<br />Controls the fade duration of the overlay.<br /><br />Note: This value is measured in milliseconds.<br /><br /><b>Default: 400</b><br />', @cgi, 102, NOW(), NOW(), NULL, NULL),
(NULL, 'Resize Duration', 'ZEN_LIGHTBOX_RESIZE_DURATION', '400', '<br />Controls the speed of the image resizing.<br /><br />Note: This value is measured in milliseconds.<br /><br /><b>Default: 400</b><br />', @cgi, 103, NOW(), NOW(), NULL, NULL),
(NULL, 'Resize Transition', 'ZEN_LIGHTBOX_RESIZE_TRANSITION', 'false', '<br />Allows for custom control over the transition effect used to animate the lightbox.<br /><br /><b>Default: false</b><br />', @cgi, 104, NOW(), NOW(), NULL, NULL),
(NULL, 'Initial Width', 'ZEN_LIGHTBOX_INITIAL_WIDTH', '250', '<br />If Enable Resize Animations is set to true, the lightbox will resize its width from this value to the current image width, when first displayed.<br /><br />Note: This value is measured in pixels.<br /><br /><b>Default: 250</b><br />', @cgi, 105, NOW(), NOW(), NULL, NULL),
(NULL, 'Initial Height', 'ZEN_LIGHTBOX_INITIAL_HEIGHT', '250', '<br />If Enable Resize Animations is set to true, the lightbox will resize its height from this value to the current image height, when first displayed.<br /><br />Note: This value is measured in pixels.<br /><br /><b>Default: 250</b><br />', @cgi, 106, NOW(), NOW(), NULL, NULL),
(NULL, 'Image Fade Duration', 'ZEN_LIGHTBOX_IMAGE_FADE_DURATION', '400', '<br />Controls the fade duration of images.<br /><br />Note: This value is measured in milliseconds.<br /><br /><b>Default: 400</b><br />', @cgi, 107, NOW(), NOW(), NULL, NULL),
(NULL, 'Caption Animation Duration', 'ZEN_LIGHTBOX_CAPTION_ANIMATION_DURATION', '400', '<br />Controls the animation duration of the caption.<br /><br />Note: This value is measured in milliseconds.<br /><br /><b>Default: 400</b><br />', @cgi, 108, NOW(), NOW(), NULL, NULL),
(NULL, 'Display Image Counter', 'ZEN_LIGHTBOX_COUNTER', 'true', '<br />If true, the image counter will be displayed (below the caption of each image) within the lightbox.<br /><br /><b>Default: true</b>', @cgi, 109, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''),'),
(NULL, 'Close on Image Click', 'ZEN_LIGHTBOX_CLOSE_IMAGE', 'false', '<br />If true, the lightbox will close when the image being displaying is clicked.<br /><br /><b>Default: false</b>', @cgi, 110, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''), '),
(NULL, 'Close on Overlay Click', 'ZEN_LIGHTBOX_CLOSE_OVERLAY', 'false', '<br />If true, the lightbox will close when the overlay is clicked.<br /><br /><b>Default: false</b>', @cgi, 111, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''), '),
(NULL, '<b>Keyboard Navigation</b>', 'ZEN_LIGHTBOX_KEYBOARD_NAVIGATION', 'true', '<br />If true, keyboard inputs will also be used to control the lightbox.<br /><br /><b>Default: true</b>', @cgi, 200, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''), '),
(NULL, 'Close Lightbox', 'ZEN_LIGHTBOX_ESCAPE_KEYS', '27,88,67', '<br />The lightbox will close when any of these keys are pressed.<br /><br />Note: Only <a href="http://en.wikipedia.org/wiki/ASCII" target="_blank">ASCII</a> decimal values should be entered and separated with a comma (if listing multiple values).<br /><br /><b>Default: 27,88,67</b><br />', @cgi, 201, NOW(), NOW(), NULL, NULL),
(NULL, 'Previous Image', 'ZEN_LIGHTBOX_PREVIOUS_KEYS', '37,80', '<br />The lightbox will display the previous image (if available) when any of these keys are pressed.<br /><br />Note: Only <a href="http://en.wikipedia.org/wiki/ASCII" target="_blank">ASCII</a> decimal values should be entered and separated with a comma (if listing multiple values).<br /><br /><b>Default: 37,80</b><br />', @cgi, 202, NOW(), NOW(), NULL, NULL),
(NULL, 'Next Image', 'ZEN_LIGHTBOX_NEXT_KEYS', '39,78', '<br />The lightbox will display the next image (if available) when any of these keys are pressed.<br /><br />Note: Only <a href="http://en.wikipedia.org/wiki/ASCII" target="_blank">ASCII</a> decimal values should be entered and separated with a comma (if listing multiple values).<br /><br /><b>Default: 39,78</b><br />', @cgi, 203, NOW(), NOW(), NULL, NULL),
(NULL, '<b>Gallery Mode</b>', 'ZEN_LIGHTBOX_GALLERY_MODE', 'true', '<br />If true, the lightbox will allow additional images to quickly be displayed using previous and next buttons.<br /><br /><b>Default: true</b>', @cgi, 300, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''),'),
(NULL, 'Include Main Image in Gallery', 'ZEN_LIGHTBOX_GALLERY_MAIN_IMAGE', 'true', '<br />If true, the main product image will be included in the lightbox gallery.<br /><br /><b>Default: true</b>', @cgi, 301, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''),'),
(NULL, '<b>EZ-Pages Support</b>', 'ZEN_LIGHTBOX_EZPAGES', 'true', '<br />If true, the lightbox effect will be used for linked images on all EZ-Pages.<br /><br /><b>Default: true</b>', @cgi, 400, NOW(), NOW(), NULL, 'zen_cfg_select_option(array(''true'', ''false''),'),
(NULL, 'File Types', 'ZEN_LIGHTBOX_FILE_TYPES', 'jpg,png,gif', '<br />On EZ-Pages, the lightbox effect will be applied to all images with one of the following file types.<br /><br /><b>Default: jpg,png,gif</b><br />', @cgi, 401, NOW(), NOW(), NULL, NULL);
