Most people are using the 3rd edition. There are only minor differences between the two. Also, Dr. B doesn't seem to ever change his slides, and it seems they were pulled from the 3rd edition. So, you're good to go with either one.

__________________
AUC 2nd Semester
Rectouterine pouch!!
http://slevit1.blogspot.com

Give a man a fish and he will eat for a day; teach a man to fish and he will eat for a lifetime; give a man religion and he will die praying for a fish. --Unknown