[dev] Adding a "OutOfTheOffice" report in Agent

Hello, I need to add a "Who's out of the office" report on the right side under the "Settings" box in the AdminDashboard.dtl. (See picture) http://0x31337.org/images/OTRS-out-of-office.png However, after getting hung up in the typos errors and other problems with just the "HelloWorld" module example, and constantly getting server errors while simply trying to browse through http://source.otrs.org/viewvc.cgi/ - I'm asking for help. Can anyone direct me to a **working** custom-module example? Thanks! Drago