hey lyn-dae i had the sme problem, just go throught all the missing shaders, i.e the road, etc and just refind the texture maps in the sourceimages file. This should work. I believe there is like two different bump or texture maps on the barrels and the dupster, i had to sort out both to get it all working. hope this helps
Heyy there! It did this for me when the HDR map wasn't plugged in. Try that.
Thanks guys I'll give it a try
The textures need re-linking.