1st i would look at the normals are they flipped or simple make it double sided in lightwave
or
it could be your near camera range setting in blitz
CameraRange camera,near#,far#
the texture problem could be multiple Uvs on the same model get rid off all but the uv you use for the texture
or
are there any skelegons in the mesh, ive always had a problem with leaving skelegons in the mesh, the texture seems to want to wrap around the skelegons
or
it could be your near camera range setting in blitz
CameraRange camera,near#,far#
the texture problem could be multiple Uvs on the same model get rid off all but the uv you use for the texture
or
are there any skelegons in the mesh, ive always had a problem with leaving skelegons in the mesh, the texture seems to want to wrap around the skelegons