Setting Window Size

I’m using the PrettyPhoto Zoom plugin to display video content and it’s working well. To see it in action click the following link and then click on any of the orange “Video Tutorial” boxes: http://learndaylite.com/tutorials/

The issue I’m having is that I can’t figure out a way to specify the size of the popup window. Does anyone have any insights to offer? Thanks in advance.

http://wordpress.org/extend/plugins/prettyphot-single-image-zoom/