Well if you could give us a link to said photo then maybe we could help you identify it.
However conky is a popular choice and there are several threads here on using it. You should be able to apt-get it.
Try apt-cache search conky and see what comes up.
Check for threads with my name and pureh@te in the search box for said threads on it.
In addition there are several pages which have various conky configuration files that you can use to get a similar setup.



