Tips on collision

Hi, i've search in the forum but i don't find a good solution. This is my problem, i've a hand with bone, i can move the finger and i would grab box and differente object in the scene. Now...this is the tips....i use the convexHull or primitive type for example capsule for each finger(with joint)?
ah..how i can show the collision debug line? o.o

THX very much and sorry for my english!!!!!

PS:each finger take input from keyboard

Ok...after a weekend to study i try with the basic collision(box,sphere ecc...). Now...there is only a question..how i can show the collision line in debug? i try with :

this->mWorld->getDebugger().init(this->mSceneMgr);
this->mWorld->getDebugger().showDebugInformation();

//I'm use newton 2.26

nothing error..but after an exception "could not find font BlueHight-10 in MovableText::SetFontName"...ok...i search in the forum...and found a thread...
but in my folder C:\OgreSDK\media\fonts there is that file... blueHught-10.font

a tips?

Solved

Can you tell how did you solve it i am facing the same problem of the missing font ?