BLENDER again

This process continues all the time:
new BLENDER installed. (Super: it has a python script for sculpties for Second Life)
BUT
it says "Python not found", but i have installed Python
ok, i installed the latest version....it must be a former version
there is a link to the apropriate page
ok i download that version (although it is not the version wanted, the link points to another version again)
ok, reinstall python, reinstall blender
Blender says "sorry no Python found"
repeat this process again....
the link pointed to a wrong version as i already mentioned....
ok found this version....
and eventually, after about four times downloading and installing Python versions, BLENDER has the version it apparently needs...

the same thing happens for the DEVKITPRO, to program homebrew for the nds....

and while we are trained to do nice and well-ordered OO programming, we drown in versions, updates, patches...
but we are happy nonetheless with these free programmes!!!

i did not include the version numbers, with intent of course, these numbers (version 2.5.2) will change all the time, although this lessons stays the same: patience and carefull reading of the hints, not believing theses hints and links, and expecting to search again yourself.