I haven't actually tried setting these yet to verify they actually work, but these settings may be what you are looking for:
Code:
<!-- Directory locations. Defaults shown -->
<directories>
<!-- <maps>Maps</maps> -->
<!-- <quests>quests</quests> -->
<!-- <plugins>plugins</plugins> -->
</directories>
These would go in your eqemu_config.xml file. They aren't in the standard file, but you can see extra settings in the eqemu_config.xml.full file, which is where I got these. You should be able to set the path there and just uncomment the line you are setting by removing the <!-- and --> around it.