Thanks for the nice scripts, but I do suspect it fails at least with my ozi map data.

I've tried ozi to tile conversion with a small sample map ( 2.0 x 2.0 km 1:16000 ) from Finland and the tile hierarchy created is this.

.
./googlemaps.html
./openlayers.html
./0
./0/0
./0/0/0.png
./1
./1/0
./1/0/0.png
./1/0/1.png
./1/1
./1/1/0.png
./1/1/1.png
./tilemapresource.xml


I've enclosed the original map-file and the generated vrt-file.