Nick, your Browser Rejector is definitely a fantastic product and I have been using it on all of the Responsive Design sites that I work on.
Obviously, you haven't been updating the plugin frequently enough to keep up with the latest version numbers of Chrome, Internet Explorer, Firefox, & Opera.
Therefore, I would request that you remove the version numbers from the icons you are displaying for downloading those browsers. The links still seem to be correct, although you might want to revisit them to see if they are the best to use now.
-- Thanks, Roger