Nodes aren't working! AT ALL!! Graaaah!

Hi there, Total noob here,

I made a cute little tree that renders just fine in Torque, I'm using collada just to test it all out but I seem to be having troubles with my nodes here...

Of course, I'm using blender and here's my hierarchy of empties.

OB:Shape (empty)
|
|- OB:Detail64 (empty)
--|
--|- ME:TreeObject_001 > OB:TreeObject001 ( My high detail model )
|
|- OB:Detail32 (empty)
--|
--|- ME:TreeObject_001.001 > OB:TreeObject_001.001 ( My low detail model )
|
|- OB:Col-1 (empty)
--|
--|- ME:ColMesh-1 > OB:ColMesh-1 (My collision mesh, duh!)

Well, I HAD the collision mesh working at first, but now it's rendering, and BOTH of my detail maps are rendering at once..

I probably have this ALL wrong, but I just don't know how, I haven't yet found a good resource on HOW the format works...

If someone could just point a moronic noob in the right direction I'd greatly appreciate it thanks, and I will ship you a cookie if you explain a bit HOW everything works to me because I'm either too dense to get it or something is wrong here... Thanks very much

-Mike