To install download the latest dwagent.sh file from the DW Service [Link].
Make it executable and then execute it:
sudo chmod 755 dwagent.sh sudo ./dwagent/sh
Select install and then insert the number generated in your Agents area.
To change the installation code or re-install move the following file:
sudo mv /usr/share/dwagent /usr/share/dwagent.old
Then execute the installation again.