This was transcribed partly by using the tutorial on their 
DVD; partly by ear.

I split the parts Gabriela is playing into a guitar and a 
percussion section, since her playing is heavily 
percussive (see below). If you want to know excactly 
what she is doing I'd advice you to watch the live in 
studio version (Link is at the bottom).

If the tab says bass drum (36/35 (softer)) and/or low 
tom (41), you have to slap onto the stirngs above the 
soundhole (the sound is slightly different on different 
positions, so try to find out what suits best; I personally 
prefer to hit it nearer to the saddle); if it says 38 
somewhere, hit either onto the fretboard or onto the 
body. Make sure you mute the strings when doing the 
percussive parts, otherwise it might sound awful.

http://www.youtube.com/watch?v=0dN91dhERgA

Have fun!