Downloading English version of the Knowledge Management exercise

There exists no automatic direction button (similar to the one which can be found on top right corner of the KM lecture's homepage) and I handled the problem in this way (I know almost nothing about html, xml and many other IT related topics):

I thought both homepages (Lecture and Exercise) should be organized by the same person or at least in the same way. So I compared URLs of “english homepage” and “german homepage” of the “KM lecture” together. Their difference was just a simple “index.en.html” and I added it to the URL of german homepage of KM exercise.