Import 3D model and apply textures

Hi!

Im trying to importing 3D models into. I got basically three different scenarios / questions:

  1. Say I got this 3D model
    free3d.com/3d-model/tree-74556.html

How do I properly apply the materials? At the moment something is wrong with my network so it wont render any materials at all. See attached file

  1. And say I got this 3D model. How do I properly applying the materials to that one?
    free3d.com/3d-model/realistic-t … 95419.html

  2. How can I split this into smaller pieces so that I can animate for example movement of the leaves etc.

Thanks
applymaterial.zip (12 MB)