Last night I felt like a took a huge crash course in this area of Dynamics, as I managed to go through all 12 :). I found that after these specific tutorials, I began to understand the use of expressions and scripts alot more clearer, which was quite interesting and useful.
Instancing Part 1-5
Instancing Part 6-8
Instancing Part 9-12
During the arrow and rockets tutorials, I couldnt quite see the file which was opened to begin with, so I accidently applied the Dynamics onto the opposite object, and wasnt sure how I would have gone about changing this, however they are quite simmilar in shape, so the effects barely lost :)