Hi,
I guess you are using Artisteer skins, and these hello world examples were created long before we had support for Artisteer so they were missing some of the needed markup for Artisteer skins.
I've just updated the hello world examples so they should now have the needed markup. I also added an example for VB.NET.
If you download it again it should have what you need, thanks for pointing this out.
Best,
Joe