I's agree with Ketchup.
I think you might find older versions to be more helpful. I downloaded, and will look at, the latest version, today, to see what's there. I know older ones were much more 'beginner-friendly.'
In the meantime, let us know if you find more, as well. Additionally, if you want to do some learning, get the de-ice labs, etc, and start playing with those, as well. If you have some extra pocket money, the book Thomas Wilhelm wrote is great, and contains them, as well as some good lesson material, for only about $80 us... Much cheaper than many of the other possible options you'd have (while obviously still not 'free' as you'd like with the DVL...)
~ hayabusa ~
"All men can see these tactics whereby I conquer, but what none can see is the strategy out of which victory is evolved." - Sun Tzu, 'The Art of War'
OSCE, OSCP , GPEN, C|EH