Can`t say the pictures work for me.
I think what you are referring to is how Orc strongholds suppose to look. There is a palisade wall that goes all the way around, and some large wooden walls that only add some towers/walls here and there. We never planed Orcs as a defensive race, however in expert hands Orc strongholds are very useufl since you have all these little pockets and gates in the palisade.
If something is indeed broken, please post some screens. You can actually attach JPG pictures to this post using Attachment Manager button (you`ll see it when you reply).