I am a newbee in fs scenery design, here is a problem

I assign a texture(8bit bmp format) to an object in GMAX and the texture is visible .
then I convert the mdl and xml to bgl I put the bgl file in the ...../addon scenery/scenery folder and the texture in .../addon scenery/texture folder
But the texture is invisible .only the object can be seen in fs9
Are there some steps I missed?
THX!
