When I start Blender there is a text in the dos window there it stands “Import site´ failed; use -v for traceback
No installed Python found.
Only built-in modules are available. Som script may not run.
Continuing happily.”
How do I install Python doesn´t I just extract the Python23, that comes with blender, in the same place where Blender.exe is?
http://python.org/ftp/python/2.3.5/Python-2.3.5.exe
Just install into the default directory. Doesn’t really matter where it is.
That´s what I done from the beginning. 
If Blender dosn´t find Python I can´t run any Python script, right? But it works to export modells to .cob files (probably the other formats too but I haven´t tested them. I haven´t tested other Python script). Python were included in my computer when I bought it but I didn´t liked that damn message so I downloaded it anyway and it´s still the same boring message. I really wanta test some Blender plug-ins but I have a modem so is it worth the time it takes to download the scripts, just to test if they works too?
What sort of reply you think you’ll get in the python forums? Don’t install python, it sucks?
Personally, I write python scripts, and I think it’s great. Python can be used for things other than Blender, for example Google uses it extensively. It’s a programming language, at least as much as Java is, but whithout some of the annoyances (and probably with some annoyance of its own, but so far we are still in out honeymoon and I have to find out its quirks).
As far as Blender is concerned, Blender doesn’t need python. And some of the scripts that come with Blender don’t need python either, they’re happy running on Blender’s embedded python. However, several import scripts, even some of those bundled with Blender need python in order to run, as well as some of the “cool” scripts. So if you want to have a fully functioning blender installation, downloading python is worth it.
You are so kind, Brandano.