Update: Tag history has been overhauled. You can now clearly see what tags have been +added and -removed from a post within the tag history as well as the category for each tag and the rating history.
To view the tag history of a post click on it and look for the history section within the sidebar.
Update: Our default theme has been changed! Let us know what you think of it on our forum. You can freely change the theme by going into your options. Click here.