Insert css into boston2008.drupalcon.org.css

Please insert the following style information at the bottom of style sheet located here: http://boston2008.drupalcon.org/sites/all/themes/bluebeach/css/boston200...

div.fieldgroup.group-thumbnai-caption {float:right;margin: 0 0 10px 10px;}
.field-field-site-url {margin-bottom:10px;}

Thank you!