I needed a new image gallery viewer for my website as I migrated to Joomla! 1.5. At the time of install I thought this extension could be improved a lot and the thumbnails did not look great when you mixed portrait with landscape images. BUT, version 1.6 addressed this and added a maximum height parameter! Now, no matter what dimensions my images are the thumbnails are identical size (used crop thumbnail option) and users will not have to scroll down if a portrait image is selected. Well done! Easy to understand parameters and good examples on site. I work for a non-profit summer camp and do many other things besides the website. VSIG helps me provide a professional looking website with little time investment. Great extension!