Okay guys, here is a very noobish question, but I seem to dumb to find an appropriate tutorial…
I have a spatial s (I loaded a tank model) and a terrainblock tb.
How do I place the tank onto the terrainblock? :?
Would be very nice if anyone could help!
Regards
Alex
Is there really noone who can help??
Everything gets added to something attached to the rootnode of your scene.
You might want to read these tutorials. They’ll tell you all the basic information about how to work with a scene.
See http://www.jmonkeyengine.com/wiki/doku.php?id=adding_a_chase_camera and look for "characterMinHeight".
Many thanks guys 
That helped me out a lot!