Theme is not installing properly

Hey community,

I am an absolutely newbie to Fedora and need help with customizing my Fedora 17.
I wanted to install the reNIX Theme to make my Fedora a bit more prettier but it is not working in the way I expected.
(Link to the Theme: http://gnome-look.org/content/show.php?content=153312 )

Everywhere in the web I read that there is a compatibility to Fedora for this Theme.
But unfortunately, the theme is looking like this screenshot:
img18.imageshack.us/img18/6410/bildschirmfotovom201212.png

The default title-bar in grey is still there. If I compare it with the screenshots, I wonder what I was doing wrong.

I installed the theme by extracting the zip package i and moved it to
~/.themes
and
/usr/share/themes

Afterwards, I changed with dconf the value org.gnome.desktop.interface the key "gtk-theme" to the name of the folder in which the theme is located ("reNIX").

Unfortunately it is not displayed as I expected it to be like in the screenshots.
I have no idea what I was doing wrong.

As I said, I am a completely newbie to Fedora.
I have a clean install of Fedora 17 32bit and only changed the default icon pack yet.
And sorry for my broken English.

It would be nice to get a hint what I can change to make my theme as good as in the theme preview. :)

Thanks a lot!