Thumbnails are off in Upgrade 1.9.7

http://alwaysacoustic.com/gallery/

My thumbnails are off and have shifted since the upgrade to 1.9.7.

I know there is somewhere to adjust the code by decreasing the bottom alignment.

Can you point me in the right direction of what part of the code it is in?

Thanks.

http://wordpress.org/extend/plugins/nextgen-gallery/