Importing Cyan models

I wanted to import gazebo from Eder Delin or Tsogal, and treat it as an base for my own gazebo for Shell 126.
So I have importer up and running. Lucky for me, I was able to import Delin. I got meshes and materials. At first I though that I didn't imported textures,
but I have been told that despite the fact that I don't see textures in Blender they are applied to the object, and they will be visible in URU.
My problem is that importing object is just the beginning. I want to modify it, meaning: adding/merging vertices, meaning that I will have to set UV coordinates for new vertices.
Any tips on my problem?
P.S.
Option Game->Blender GLSL Materials is not working on my computer. I got error "GLSL is not supported with this graphic card"
So I have importer up and running. Lucky for me, I was able to import Delin. I got meshes and materials. At first I though that I didn't imported textures,
but I have been told that despite the fact that I don't see textures in Blender they are applied to the object, and they will be visible in URU.
My problem is that importing object is just the beginning. I want to modify it, meaning: adding/merging vertices, meaning that I will have to set UV coordinates for new vertices.
Any tips on my problem?
P.S.
Option Game->Blender GLSL Materials is not working on my computer. I got error "GLSL is not supported with this graphic card"