The %l, %x and %y variables

I could need some help with the %l, %x and %y variables as they result in way to high values causing TileProxy to load textures that are outside of the ortophoto coverage area. All textures in FS2004 gets blue.In ProxyUser.ini I have set up the tile path ...raster/%l/%x/%y.jpg|...This result in URLs like ...raster/13/4234/1719.jpg...The correct values should have been in the area of ...raster/13/610/632.jpg...13 is the zoomlevel and x and y values double when zooming in one step.Is there any way I can modify my URL so it will be correct or is the map service I'm using not compatible with TileProxy?