Starting Compiz on KDE 3.5 , Xorg 7.2

[Sereno Ternullo]

Hi folks, 
after a painful process I've upgraded my xorg to 7.2. 
I'm running FreeBSD 6.2

My nvidia driver seems to work fine, 
glxgears runs now fast.

I've installed x11-wm/compiz.

After logging into my KDE session, I type 

$ compiz --display :0 --replace gconf decoration wobbly fade minimize cube 
rotate zoom move resize place scale switcher water &
$ kde-window-decorator

Compiz starts, but it seems I don't jave any kde-window-decorator and my 
windows remain without borders. 

Am I missing anything ?