Help with fold_page plugin

So I’m developing this site for a friend, and I’m trying to use the fold-page plugin.

The site’s address is here: http://www.aldoranitrading.com/adt/

The problem becomes obvious when you visit the site. I’m using an inline tag in the navigation bar, but whenever a particular parent link has ‘children,’ it screws up any further parent links and drops them down below.

Is this an issue of styling? Is it a bug in the plugin? Hope somebody can help me out with this…