I thought I'd try doing a tutorial... I've been using SGO Mistika and have also downloaded the companion compositing software from SGO called MambaFX . As a way to show how the interface works, I thought I'd try making a 'light wrap' effect.
This might not be the best way to build this effect but it shows what the software can do. (I'm afraid I can't remember where I got the source footage - it was available somewhere on the web - so if it's yours please let me know!)