The installation instructions and the download can be found here: http://220.127.116.11/Elite/POS/
User Name = Answers
Password = Answers2015
Please make sure you perform the upgrade at a time no one is using the POS, also restart the terminals after upgrade is done. It's OK if others are using AOD Clincal, Financial or any other part of AOD. This only affects the POS terminals.
Make sure that after each upgrade you launch POS and double check that the upgrade took effect, then Updates Manager in POS and run all those programs.
Also, the new upgrades only support a resolution of 1024x768 so if you have very old terminals that can only function with resolution 800x600, this upgrades will not be recommended.