PFTrack and Blender 2.50 ,question.

Hi I was wonder how much work will be with converting python script of tracking data from PFTrack exporter to 2.4X series to Blender 2.50?
Can anyone tell me?
I paste below current script exported from PFTrack 4.0:


P.S I know that I can use 2.4X and open just blend file in 2.50, but this is not so comfortably.