by wagnerw » Sat Oct 10, 2015 8:00 pm
Download the ZIP and extract it to a place where you find it later. The JAR is an update that needs to be copied into the extracted folder. It replaces the existing OpenRadar.jar
Then follow the WIKI guide!
If this does not help you, please tell us, what you did, what you see and where your issue comes up! Your call for help is a bit too generic...