Vertex Hack with blender problems

[glurak15]

Hey
I'd like to create a custom model with a vertex hack with blender.
For that, I used this tutorial from meow mix:

<a href="http://www.youtube.com/watch?v=_zZUss7H5Ck" target="_blank" class="aeva_link bbc_link new_win">http://www.youtube.com/watch?v=_zZUss7H5Ck</a>

But now it's the problem, after I've imported the .obj file in blender, there are only the vertices, no edges or faces.
Is it possible to get them too to make the hack? Because without edges and faces it's nearly impossible to hack it so it will look like it should. I'd like to remove some vertices and so I've to create new edges and faces, but how is it possible?
Thanks for your help.