I'm pretty sure in 6.2 the whole scripting at the Repository level thing has turned into scripting via the Automation tab. Here, you define a validator-action pair in which you define 1: an event that happens (document created within a specific folder, for example) and 2: an action that happens because of that. In the Community version, you can only check for "PathContains", meaning something happened in a specific folder and "ExecuteScripting" as an action. If you have the Professional version of OpenKM, you'll have a bunch of extra options for pre-created scripts such as "AddKeyword", "AddCategorytoWizard", etc...
BTW, you have to enable automation first to make anything work:
http://wiki.openkm.com/index.php/Enable_automation
I can't help you with the scripts that actually go in the ExecuteScripting action. I'm stuck at that part myself, actually. Seems that directly taking scripts from 5.x versions of OpenKM doesn't work in 6.2...