Problem with overlap

Good night 🙂

I wanted to congratulate the plugin, tell that I’m using in doing the same test on my site and ask for help with a problem I’m having ..

works perfectly in Chrome, but in Firefox-26.0 and Internet Explorer 9 Gallery right justified and below the sidebar ..

Below is the link to the post where I’m testing the plugin ..

http://vitrinedosimoveis.net/site/apartamento-bancarios/

Thank for support!

http://wordpress.org/plugins/responsive-gallery-grid/