The Real System Requirements of Blender 2.49a for Windows XP

The first time I attempt to install Blender 2.49a, when the installation is about to end, it requires Python 2.6, not Python 2.5.4, as described in the Blender download page, and Microsoft Visual C++ Redistributable. Here are the REAL system requirements of Blender 2.49a for Windows XP:

Minimum:
128 MB RAM
300 MHz CPU
Windows XP SP1
Python 2.6.0
20 MB Free HD Space
1024x768 16-bit color display
Visual C++ Redistributable

Recommended for home use:
512 MB RAM
1.* GHz CPU
Python 2.6.2
Visual C++ Redisributable SP1
Windows XP SP3 with latest critical upadates installed