Gorange - GTK2 and Metacity

I see that comments here have been relatively dead, but I was having some trouble with my theme manager (just sfce4-appearance-settings) saying that the archive and the extracted folder are incompatible and not adding the theme. I made sure I have gtk-engines installed, which includes the clearlooks engine and should be fine with this one.

Extracting the folder to ~/.themes/ didn't help either.

This looks impressive and I want to use it!