Download the latest release (v1.4.8) - [click here for download page]

Instructions

• Download the file from the above link
• No installation required, simply unzip the downloaded file to a folder.
• Execute the startup script or executable for your platform (note that it may take a while to start the first time!).
• Check out the 'Getting started' section in the manual (included in the distribution).

You need a java 5 runtime environment (JRE) or better. You probably have one already but if you don't, get it here.