Installing Python into 2.49b

Hi ya’ll, I ran 2.49b on my old computer (Windows XP) to make custom skeletons for Second Life. They worked great, no problems. Now I have 2.49b installed on my new computer that runs Windows 7. But can’t recall how to add the Python scripts to use 2.49b.
I’ve tried using this tutorial for making custom skeletons but it will not work! when I upload the dae file, the upper body is deformed, stretched to the sides.
I would love to be able to still use 2.49b, or does anyone know just how I can make my custom skeltons in the newer Blenders.