Your preview thumbs are the same images as your "large" images, all you did is reduce them in HTML. You have 12 thumbs that avg 100K each, not only will you get will your hosting bill to go through the roof but your page loads ass slow.
You need to reduce the tumbs actual size like this
yours:
http://www.painful-ecstasy.com/tgp/s...009006_001.jpg
mine:
http://www.tastyporn.com/thumb-009006_001.jpg only 33K
Hope this helps