Just a little FYI on some custom quests.
I know most UO players are used to talking to NPCs via context menu or quest menus, but some of these guys respond to keywords. This is similar to old Sierra style games, and early PC RPGs. For Example: There a funny looking vase in the corner and Tim is standing nearby. All the double clicking and context menus in the world will get you no where, but saying "Hey Tim, what's up with that vase?" will start Tim to talking like he can't shut up. Pay attention to what he says and look for clues in what he says. Some of the dialogue lines will contain hints to other keywords that Tim might know something about.
Tim: "That vase contains the soul of a paladin cursed by an evil wizard named Morgoth"
You: "Who's Morgoth?"
Tim: "Morgoth is...." So on and so forth.
So try some things out. Explore. Put a little adventure in your adventure.
Hope this helps someone. Later!