I'm using AutoThickBox. (http://wordpress.org/plugins/auto-thickbox-plus/)

The plugin is firing just fine. However, the thickbox pops up down in the bottom right corner of the screen. How do I position it over the image they have clicked? I'd like it centered on my page. Where is this option?
I feel comfortable modifying the css, if I could only figure out where the code is for the position of the window...

Any help?

my website is beta.cleantelligent.com
The video is on the final slide of the slider.