I needed a thumbnail generator with lightbox pop up of the original sized image within articles (not photo gallery) and have been searching for a long time. I'm using Joomla 2.5 so at first I thought Mavik Thumbnails wouldn't work for me. However, after reading other reviews which say that it works perfectly with Joomla 2.5, I decided to give it a try and it DOES work perfectly! I'm working on an academic project which is non-commercial so I was able to choose the highslide lightbox option which is responsive. Thank you for a nice plugin that works!