Go to synaptic and install emerald theme manager.
Open up a terminal window.
Issue the command emerald –replace
To auto start emerald while starting up, add the following to the startup application list.
Description: Emerald Startup
Command: emerald –replace
install CCSM with the command sudo apt-get install compizconfig-settings-manager.
You will find this in the General section labeled KDE Compatibility. Make sure that check box is checked.
Optionally: in CCSM change
Effects - Window decoration - value to point to emerald
But in my xubuntu the following command is what worked for me.
compiz --loose-binding --replace ccp && emerald --replace
Put the above two commands separately as the startup commands.