Stefan,
you have to change the language settings in your browser.
If you should work with the MS Internet Explorer the steps are as following:
1. Open the window "Internetoptionen" at "Extras"
2. At the tab "Allgemein" you click on the button "Sprachen"
3. Change the language into "Deutsch-Liechtenstein"
4. After saving the setting you should be able to see "forbidden" pictures
Works fine at my PC
Greetings
Robert