NeHe on OpenGL
I just saw that Wesley has started to port the NeHe OpenGL tutorial to Qt post 1, post 2 and post 3. Great work! I did that back in the Qt 3 days - so perhaps this can be of interest: NeHe chapters 1-12.
As for the Independent Qt Tutorial. It was a while since I updated, and it only applies to Qt 3. Way back we started to move digitalfanatics.org to a wiki format (yes, it is damn ugly), but the tutorial hasn't been moved yet - thus the lack of incorporated updates.