Animation issue when importing collada.

Hello.

I started using blender some days ago and i thought i would just test an animation from another game, in this case the Grunt from Amnesia The Dark Descent.

Something went wrong on the way though. I will give you an example of what i got:

but he should be running like this:

Now, what do you guys think about this issue? As far as i see, no one else has got this problem. :frowning: