but when I click on batch add files the url changes to this http://carriesource.us/gallery/searchnew.php and then the page doesn't load. Someone told me it might be my server, but everything else loads just fine. So I don't know what the problem is.
Do exactly as suggested in the docs, section "asking for support on upload issues". Additionally, post a deep link to one of the files that you'retrying to batch-add that gives you issues.