If I replace the existing folder, do I need to uninstall and reinstall the plugin? After replacing the folder it just says that the Google Analytics plugin is now 1.02 and that it is installed. Also, is there a reason it should be set to be before the closing body tag? It would be better if it could be before the closing head tag instead so it is loaded before the user has a chance to move on. Is that possible?
YEs it's better to reinstall plugin, so you will get the default scripts during reinstallation. After that you can place the plugin wherever you want. Personnally I put it before closing body.