I just updated the NS2 lecture note at the following URL.
http://www.ece.ubc.ca/~teerawat/NS2.htm
They are now in one slide per page. Easier to read, eh? BTW, if you are an instructor and need a power point slide feel free to contact me, (Due to the spammer, I don't wanna give out my email here. My email is provided in the NS2 book), or you may put the comments on the blog.
Here is the book from Springer:
T. Issaraiyakul and E. Hossain, "Introduction to Network Simulator
NS2", Springer 2008.
http://www.springer.com/engineering/signals/book/978-0-387-71759-3
