Bug testing of my blog

I have a website called meanwhileblog.com. I need it thoroughly bug tested across all major browsers (more browser details below). The idea of the site is that people can upload captioned pictures, using the picture caption tool on the blog. For example, people upload a picture of something funny in Germany, and then they caption the picture with "Meanwhile in Germany." The blog has two tabs from the homepage where pictures can be found: the "all" tab and the "featured" tab. From a user perspective, once you upload a picture, it has its own URL, but the URL is orphaned until the admin takes further action. In other words, the URL of the page with the picture isn't listed on the "all" or "featured" tabs unless the admin takes further action. From an admin perspective, when a picture is uploaded, the admin views it under the "new postings" section in the back end under the "Meanwhileblog Public Photo Postings" section. From there, the admin can approve, delete or edit the new uploaded picture. If the admin approves the picture, then it appears under the "all" tab on the homepage. Pics listed on the "all" tab should be listed in chronological order, newest on top. If the admin features the picture, then it appears on the "featured" tab on the homepage. Pics listed on the "featured" tab should be listed in chronological order, newest on top. That's the basic idea. I need someone to thoroughly test this from an admin and user perspective, across IE 6, 7, 8 and 9, plus the newest versions of Firefox, Chrome and Safari.