You are already running the current version (1.2.0). To do a fresh install,...." Having uploaded the upgrade package, and run the install script. I no longer have a RC attached to the current version title. Again... what am I missing here?
If it is telling you that you are running 1.2 already, you have successfully upgraded from 1.1.3 and you should follow the upgrade guide to do some completion steps (templates, add-ons, etc.) to 'finish' the upgrade.