White Terrain using Atlas2

I'm working on importing a fairly basic terrain into TSE using Atlas2. The problem is that the terrain shows up as completely white, no textures at all. It looks like the vertical elevation is there but no color. Here is the process I'm using to create the terrain:

1. create a 2048 x 2048 terrain in L3DT pro. The heightmap, lightmap and texture map are 512 x 512 mosaic.No high res anything, just a basic terrain.
2. Export the heightmap as a 2049 x 2049 raw and copy the texture, lightmap and raw file to the data/terrains folder.
3. Convert the raw into a chu using generateChunkFileFromRaw16(). no problems here. verts per chunk ranging around 4000 to 5000.
4. Convert the chu into an atlas using importOldAtlasChu(). no problems here
5. Convert the L3DT lightmap files into an atlas file using atlasGenerateTextureTOCFromTiles().
6. Convert the L3DT texture files in an atlas file as in 5.
7. Built the blender terrain using atlasGenerateBlenderTerrain() using the three atlas files above. The atlas from step 5 is used as the opacity file and the atlas from step 6 is used as the lightmap file.
8. load the terrain in a mission file as follows:

new AtlasInstance2(NewTerrain) {
position = "-2048 -2048 384";
rotation = "1 0 0 0";
scale = "1 1 1";
atlasFile = "~/data/terrains/Detail.atlas";
};


I've tried adding detailTex = "~/data/terrains/details/detail1"; too but it doesn't seem to do anything.

I have managed to get the above process to work using a n equally basic 1024 x 1024 terrain. It was a little blah but it worked.

thanks.