OpenKM has many interesting features, but requires some configuration process to show its full potential.
Forum rules: Please, before asking something see the documentation wiki or use the search feature of the forum. And remember we don't have a crystal ball or mental readers, so if you post about an issue tell us which OpenKM are you using and also the browser and operating system version. For more info read How to Report Bugs Effectively.
At our main web page at http://www.openkm.com/ at top there's the download link of the bundle. Simply extract from there the OpenKM.war ( into the zip ) and overwrite your existing. And take a look at migration guide http://wiki.openkm.com/index.php/Migration_Guide The upgrade it's really easy to be done, read 5.0.1 to 5.0.2 and 5.0.2 to 5.0.3 ( at least you must do what's it's indicate in 5.0.2), change the OpenKM.cfg parameter to update database.