Zen Lightbox v1.4 has just been released and will be available in the downloads section shortly.

A full list of changes can be found below.
  • Renamed Zen Lightbox function, various files and folders
  • Improved use of the overrides system for JavaScript and image files
  • Added admin switch to enable/disable Zen Lightbox
  • Added admin switch to adjust the overlay opacity
  • Added admin switch to adjust the overlay fade duration
  • Added admin switch to enable/disable resize animations
  • Added admin switch to adjust the resize speed
  • Added admin switch to adjust the border size
  • Added admin switch to enable/disable the lightbox from closing when you click on the overlay
  • Added admin switch to enable/disable Flash objects from being hidden when the lightbox is displayed
  • Added admin switch to specify a DIV class to hide when the lightbox is displayed
  • Added lightbox functionality to document_general_info, document_product_info, product_free_shipping_info, product_music_info, product_reviews, products_reviews_info and product_reviews_write pages.
  • Updated Lightbox JS v2 code to version 2.03.3
  • Reverted to original CSS code (with custom fixes)
  • Fixed model number display error on product_reviews page
  • Added code to load all lightbox resources before image loading is complete
  • Updated support for Zen Cart 1.3.7.1 and Image Handler 2.0 v0916
  • Removed close link from lightbox image
I'll reply to this thread again when the download link is active.