I’ve just updated my Google Analytics WordPress plugin to version 2.2, it “forces” you to switch to the new tracking code. Image tracking and AdSense tracking should still work. It requires the code to be in the head, as outbound link tracking will still not work correctly otherwise.
Before you install it, delete the old version, as some files have been removed. I’d appreciate all your feedback! Thanks go to Hugo Krantz for testing!
Update: multiple people said they wanted the code before the /body. Unfortunately, this help document says:
That’s why I left that possibility out, and placed the script in the place where it makes tracking most reliable: the head section.