Video gallery grid code? HELP!

I’ve been manually putting the info for my media page and theres got to be an easier way. I’m using shadowbox and I have nextgen but both confuse me. I’ve got the basic setup I want but do i have to change the margins on each picture??? Please Help!! Is there a code or template? Please keep in mind I’m not super html savvy.

http://www.andayaonline.com/?page_id=112