Here is the link for a caricature description of the types - the links on the left hand side, specifically.

http://npatraits.homestead.com/

And this http://personalitytest.homestead.com/analysis.html page gives a more in-depth description of individual scores (the Focus, Temperament, S-score, etc.).

The aggression score is on the second page, by the way, on the left hand side. That's the one I'm concerned about, considering mine was so high.