el_badman, look at that picture of Iverson, then google image search a picture of the Sixers home jerseys. You should see it, then. Here, I'll save you trouble:
See how pure and white the jersey is?? This lighting file looks like home teams were rolling around in sand first. I suspect that the file itself is simply all fields set to 0 (or at least most of them; as I remember this happening with a lighting file last year as well).