Petunia Robot

Hello community.
I do not know if any of you has played with some of the free rigs available for blender. Few days ago I was interested by the petunia robot (what names!) And I have done many experiments with. And at the moment to interact with other Robot petunia (shift + F1), there seems to be no problem, until render. As you can see in the picture, there is a gigantic yellow spot that cover the other character. I did´nt imported things like lamps, cameras and other things present at the scene, only the mesh (object) …
Here are my procedure steps…
Shift + F1 -> object -> textures, armature and everything else, except camera and a lamp.

Blender 2.46
Windows XP SP2
I have no python installed, ¿should i have it?

Done with google translator and some parts by me :D, my english is very basic :yes: