Did You used the same technique as previously (
\"another creature\") ? I think it won\'t work for human model. Human body is more complicated, you probably won\'t be able to create palms, fingers, foots, nose etc. starting from single cube.
If You can use Blender, try
-> MakeHuman plugin. Yes, I know, the point is to make model from scratch, but it is a good reference and it saves time when you already can make human models by yourself (it does not mean I can do it

)
P.S. I missed Your reply last time, so here is the answer about decimator tool:
Blender 2.37a:

Blender 2.40:
