No Rasterizer module I am trying to go trough a simple Blender tutorial in which I need to use module Rasterizer. Unfortunately my Blender has no such module. As far as I know Blender has its own Python so there should be no collision with other

EDIT: Yes, question concerns BGE. As fas as I saw I have none of the modules that should be in Blender: no bge for example. I dont think there is need to get the link to the tutorial, as Blender Python console simply states that script failed, and the script is:

import Rasterizer


or

import bge


both fail.

EDIT2: I have downloaded a new version of Blender 2.68a. When it starts writes: found bundled python. I have for example bpy module but no bge module. It seems I have absolutely no Game Engine module. What a pity! :(
You can't import these module from the Python Console, they're only available when the bge is running. Add your script to a python controller logic brick.