This are some basic instructions for editing the KH wiki, you can find a link to the wiki on the main pages of the project, once you click there, you'll need to log in with your SF.net account, if you don't have an account there, you'll need to create one, then PM me to give you access to our project wiki so you can edit it. Once that's done and you are logged in, you'll notice that articles will have a green button on the top right part of the screen that says "edit article", if you click there, you'll be taken to a screen where you can type anything you wish and give format to the article you are editing, once you are done, just click on the "save" button and the article will be updated accordingly. If you have any other problems please post them here or let me know and we'll see what's the problem, thanks! <!-- s8) --><img src="{SMILIES_PATH}/orccool.gif" alt="8)" title="Cool" /><!-- s8) -->

Is it possible to "lock" an article so that it won't be visible/accessible to anyone beyond memebers of Korax Team?

AFAIK, not with the current wiki we are using, once we move to MediaWiki and we are admins, we'll be able to assign permissions for certain wiki contents, but not before that <!-- s:P --><img src="{SMILIES_PATH}/orc4.gif" alt=":P" title="Razz" /><!-- s:P -->.