I think I have the same problem as terryman, the new textures for the thespian or the mantinean hoplites are missing (there are may be more texures missing) even after redownloading the folder. So the game uses the old textures for these units with the new model and that's why there are some bad textures.
But the other functional units are may be the most beautiful I have ever seen in rtw. Great job !
Sorry for my english, I'm french.