I have created a theme that includes all the pages from the first two tutorials. So it holds
- normal page with subpage navigation
- news page including a normal page that shows news in a right side column
- image page
It took me a while to get everything running and I am still testing. But for a first look, it is available at http://www.mathias-wilhelm.de/SilverStripe/
As soon as I am done with testing, I will release the css files as well as the php files.
I like it because by simply changing the images the theme can change its look completely but I still wait for the solution to modify themes through the calling URL, just in case someone knows how to fix it (the thread where I have opened this issue is unanswered ;^(