I posted this a few days ago, along with another query, in the support area, but looks like that isn't monitored?
Adding the google analytics in the correct box on the meta tags settings page doesn't seem to work. When viewing the source code the analytics script has not been added to the page.
This is a Bug in sphpblog..
This has been fixed in 0.8.0, adding the tracking code via the web interface will work. It will appear in the page footer instead of the header, but that will be fixed in the 0.8.1 release. I've already checked it in as svn r228.