Well I bit the bullet and upgraded the blog to run on CS 2007 RTM – yes contrary to what I had said earlier. Initial indications look good so far and I only had to make a couple of changes.
There are still a few things which I have not tried like the Google CS plugin, and I suppose the CAPTCHA control will stop working. I would need to look at those over the next few days.
Meanwhile, if you find something that is not working drop me a note.