Welcome to the macProVideo forums!
What help did you need in terms of running Pro Tools 8 with your mbox 2?
In terms of the tutorials. Yes, they are very in depth. You can see an outline for each video in a tutorial series (including it's length and title) on that tutorial's page. Alternatively, browse through the Pro Tools titles by clicking on the "Watch Tutorials" button in the top right and take a look through the contents for the topics for each Pro Tools tutorial.
There's lots of important tips, tricks and in depth content for Pro Tools here :)
P.S. In the NEDweb player you'll find 7 x tutorials for Pro Tools 9. In the middle of the screen is a link to additional versions of Pro Tools. Here you can watch the Pro Tools 8 specific 101 tutorial.
Hope that helps