Just downloaded and included the ASP.NET Google SiteMap control, had to modify it a little so it looks at the mainMenu="true" option. You can have a look at its output here.

Also I've added a Post Archive, which just passes straight down to the sqlite datalayer where it groups posts by a formatted month/year string.

The other addition so far is a new search control on the sidebar. It also passes straight down to the sqlite datalayer and returns the appropriate post records.