Nodes added only to Navigation menu

I seem to be one of two people trying this out! Which is weird, because it's a great idea and would make some maintenance tasks much easier for laypersons.

Anyway, here's my issue:

Installed the module on Drupal 6.14. Tried using it with three nodes to add the nodes to navigation:

First, with a Composite Layout page, I tried adding to two menus.
Second, with a normal Story node, tried adding to two menus.
Finally, with a normal story node, tried adding to a single menu.

In each case the menu options were added to the Navigation menu, not to the menus I selected as parent.

I was able to move them to other menus without a problem. However, when I edited the node from which I had originally created the menu entries, the Parent item for both menu entries showed as Primary Links.

Some other stuff I'm running right now that might have bearing:

Menu attributes
Menu trails

Most likely won't be using this module on the site I'm working on (will just go back to maintaining the Primary Links entry from the node and doing other entries manually), so this isn't by any means an urgent request.