You'll want to specify - Jawbone produces multiple models of headset. I can verify that the Icon works fine on my machine. Follow the pairing settings that came with it, and it should work.
Don't know what to say that you probably don't already know. Put your jawbone into pairing mode then on your PS3 goto Settings > Accessory Settings > Manage Bluetooth Devices > Register New Device and it'll start searching for any BT devices.
Once it's paired goto Audio Device Settings and make sure the Input and Output Device is set to your jawbone. You also adjust the mic level here.