Vertex Hacking with Blender (Problem)

[Lutzifer]

Hi,
I want to edit a model with Blender, but I can´t import .obj files.
I have downloaded a Import&Export Plugin for .obj, the name of the file is: "obj_io_modif232b.py"
But i don´t know where I must put it.

I have watch also this Tutorial.
http://www.youtube.com/watch?v=_zZUss7H5Ck

I hope anyone of you can help me.  :'(

[vectorace]

it doesnt really matter what u name the file but when u export from anim8 u have to make it a .OBJ file