Yea I dislike the red theme, it hurts my eyes and makes me even angrier when something goes wrong
As for your problem here is the answer:
Just browse to your home folder, tell nautilus to show hidden files and then delete these files:
.gtkrc-2.0-kde (might not be there)
Restart X, and the themes should be fully functional and apply fully not partially.
As for those unhelpful people, whenever gnome comes up, don't automatically assume its Ubuntu or some other distro.