Old Techne for MCreator 1.7.9?

I need help! I download the old Techne on a MCreator topic, i create a model for my mod « Derpy Mod ». After have created the mob with his texture, a error is come, who say than this model have a problem with the parts of the mob. I created a topic for this: Techne Mob Error? See on my account for this.

I created this topic not for the error, but for know if the old Techne can make model on this new version of MCreator.

Thanks for help me.