Just in case some havent found these here they are:
Upgrade instructions
====================
1. Backup you current installation (important!)
2. Download OpenGoo 1.2.1 -
http://www.opengoo.org/ 3. Unpack into your OpenGoo installation, overwriting your previous files and folders,
but keeping your config and upload folders.
5. Go to <your_opengoo>/public/upgrade in your browser and choose to upgrade from your current version to 1.2.1.
6. Refresh your browser or clear its cache to load new javascript, css and images.