Modal Sizing Issue

I am having a problem with any lengthy forms opening up in windows with lower resolutions. The modal will pop-up and center itself but the top and bottom of the form will be missing and using the browser scrollbars does not allow me to access the overflow portions of the form.
My example can be seen here: http://idg-partners.com/test/
If I run a resolution of 1920 x 1280 or greater, I am fine but dropping down to anything below 1200 and I lose the form.
Any help On how I can have the form auto adjust to resolution or to allow for scrolling to work?

http://ww.wp.xz.cn/extend/plugins/easy-modal/