Mesh not visible in Game Engine

Hi community

I just came across a problem I can’t solve. I hope this is in the correct catagory.
I was doing a tutorial on blendercookie that covers the creating of a low poly chararcter and the creating of a small game.
(http://www.blendercookie.com/2010/05/20/game-engine-part-2/)
The modelling and texturing of my character went well and it looks pretty good. But when I start the game with “p” in blender, I can only see the floor plane. My character dissapeard. I played around with the viewport shading, changed the shading to GSLS and checked “Textured solid” but none of that worked.
In the tutorial it seems, he is not using any lights and stuff. What am I doing wrong or what is he doing that I’m not?
If someone knows a goot tutorial that covers stuff like that it would be great if you can post a link.

Thanks for all the help
mitti2000

Post your blend file here so users can see what you have

Here it is. I set up some lights so I can continue working with the tutorial. The texture I used is not there either but I think the problem doesn’t lay there anyway.
Thanks for the quick response

Edit: Sorry, just saw the link that you postet.

Here it is: http://www.pasteall.org/blend/7848