Make Flickr work with your Movable Type blog

I’ve been having problems getting Flickr to work with this blog (the ‘Blog This’ button in Flickr to be more precise) but I finally managed to solve the issue. This is for everybody who upgraded from an earlier version of Movable Type: delete your old config file otherwise Flickr will refuse to list your blog claiming you entered a wrong username / password combination. I was already bashing my keyboard at a point and then gave up for a while but later I tried using some photo printing service, which reported the exact error and so I started playing around with the config files… Now everything is working fine and I’m dreaming about a Pro account on Flickr… :-)