Doing a little work on the interface templates.  Looks like the important ones are:

index.php
header.php
sidebar.php
footer.php
style.css

From what I can see, we are going to have to create a SMC theme in order to seamlessly integrate a blog into an SMC site.  When I say “seamlessly”, I mean making a call from a SMC page template.

Once we figure out how the links work (page names and values sent in), we should be able to create a theme that drives everything off of a central index.php file.  Every link and form will go to index.php with a parameter for “page” or something that flags what page to show.

I don’t think adding a new theme is to complex, but it will take time as with anything else.