Centering Thumbnail Images

Hi, i posted 3 images on one of my pages, Kyosis Solutions , and the images will not line up across the page evenly. They are all left aligned. Those images are grouped.

I also posted 3 images to Kyosis About , and those will not align either. The pictures on this page, however, is not grouped together. I added them individually, however, if I try to align them I am having issues. They are all Left Aligned because otherwise, they go into the next line in any other combination. If I do Left, Center, and Right aligned for each image, all three images end up in their own line. It looks like a downwards staircase. I’ve tried every combination. The spacing does not turn out evenly.

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/