Hi,

Mapserver is not so popular among OSM folks. Somebody had a quick trial five years ago, was not happy with it and wrote into OSM wiki that Mapserver is not good. Since that it has been the official truth.

What do you mean by “I’m missing here the complex definition for points of interest”? Give some example of POIs you would like to see on a map and I can make write a new simple LAYER for you.