Thank you for the solution. I opened the zip file with Winzip (Mac) and replaced the framework-res.apk in /system/framework. Than flashed the new zip file and I have got a dutch MIUI with all my settings and apps preserved.
One important thing is missing in MIUI is 1080p or even good working 720p support.
The camera will work but at the moment it is not possible to play HD video without shocking. I have already tried all available players from the market.
It's a shame. Bye bye MIUI (for now).
Yes, the folder only shows two rows of icons. I was already thinking something bad has happened to the "missing" apps before I found out that you can scroll the folder. But please fix the folders issue.