Tree With Curves

I am playing around with the tree with curves script and I’m wondering how do you create branches instead of just moving the trunk around. I push the E button on one of the control points but it does not work

the whole tre plus mian branches is done with one bezier curve
follow the tut it should wokr fine

and for branches you need to Shift D a part of the main trunk and complete each main branch
then the script will create a low poly tree mesh

see thread in basic forum
http://blenderartists.org/forum/showthread.php?t=204059

salutations