The only page you can edit (As a standard user without broader editing privledges) is your personal page.
Your personal page will be at
http://nwn.layonara.com/UserName (replace UserName with your user name)
You can also click "MyPage" next to where it says "Welcome to LORE UserName (Settings, MyPage, Logout)"
You can view the wiki markup used for formating and such at
http://nwn.layonara.com/AboutMarkup Its very easy to use, basically you just type in the box and then commit it to the page. You can add just plain text to your page without even needing to know any of the markup.
Content of the personal pages should be suitable in the same way as a post on these forums, i.e. free from profanity, don't post copyrighted content without permission, don't repost explicit materials... yadda yadda.
-TV