The blog has notes on the scenario design and an AAR. While looking at the battle, I found a rather nice spreadsheet that showed unit strengths and the types of weapon they were using, links are in the Resource Section on the blog post.
http://battlefieldswarriors.blogspot.co ... -1862.html
Thanks for posting the link to your blog. I've just finished reading the McDowell battle report which was a very informative and entertaining read. Your Two Flags rule system managed to closely re-create the historical outcome - never easy to do, and is testimony to the quality of the system.