PS:
2 Firoball:
did you worked with NewtonSetWorldSize in newton_addstaticcollisiongeometry()?
ventilator wanted to make world size depends on size of treecollision... i'm going to add this in the next version of wrapper with the help of NewtonCollisionCalculateAABB()

2 Blackchuck:
adding Newton to project is not too hard, look at main.c.. well, also i wrote lesson in english, how to add Newton to project, but lesson is lost on the filefront(i uploaded files there before), so this evening i'l look for it on my comp.