5
If you're trying to work with any links module, here's the way it works
You take the module, you install it, you go into the admin section and click on "Preferences-->(whatever links module you're using). You decide upon your prefences.
Next, you click on Modules-->(whatever links module you're using). You create categories and then you add links to the categories.
BUT
If you're looking for a links directory that is ALREADY fully populated with links and categories from the Open Directory Project, then this is the module that you want.
https://xoops.org/modules/repository/singlefile.php?cid=40&lid=1608