FO3 anim import fail

[AlAraan]

I am trying to import FO3 vanilla anims on FO3 vanilla skeleton into Blender using the following setup:

 

Blender 2.49a

PyFFI 2.1.11

NifScripts 2.4.10

 

 

and following the tutorial at http://wiki.tesnexus.com/index.php/Blender_importing_animations_from_FO3

 

But it ALWAYS errors out with the following last error message:

AttributeError: 'NiTransformData' object has no attribute 'quaternionKeys'

 

A cursory Google check shows like 1 report of this error with a RTFM answer that goes nowhere.

 

Is the tutorial at the aforementioned URL missing some steps or something?

Are there more current FO3 tutorials utilizing later versions of the various tools involved?

 

Thanks.