How to activate emerald theme on FC9?

[Zlatko]

I'm trying to activate some theme in emerald theme manager without
success. 
First, I select one of themes, and then I don't have the possibility to
activate it, not even with double-click of the mouse.

I'm using all the latest packages and updates for FC9. 

Window manager: Gnome + Compiz Fusion

Thanks, 

Zlatko