CFGSurfaces???

[Mandible]

Hi,
looked at all the tuts, but either there is nothing to find or I'm too dumb. I've done some texture-tiles I want to use on my Island. So, now there are nine tiles, they are visible in WRPedit, but in OFP they're only white ground.
this is one part of the cpp:
class CfgSurfaces
      {

      class VisField1
      {
      files="fl";
      rough=0.150000;
      dust=0.300000;
      soundEnviron="dirt";
      };
            
      class VisField2
      {
      files="flfltntn";
      rough=0.150000;
      dust=0.300000;
      soundEnviron="dirt";
      };

There is no path name and no ".paa" because there were none in the example cpp's. I tried putting the right path and the .paa extension, but it does no difference. Does anyone have a link or some suggestions?
Thanks a lot!