The current version of pogo in the source code release is out of date. How to upgrade to the new version available for download? Here is one recipe which assumes you have installed the source code version of TANGO in /usr/local :
(1) download the latest version of pogo from here :
http://sourceforge.net/projects/tango-cs/files/tools/Pogo-8.4.5a.jar/download
(2) change the link for org.tango.pogo.jar to point to the latest jar e.g.
cd /usr/local/share/java
sudo rm org.tango.pogo.jar
ln -s Pogo-8.4.5a.jar org.tango.pogo.jar
(3) start pogo again and enjoy the latest version.