As you add new content items they will automatically be inserted after existing content. If LearningCart is automatically generating your site navigation menu this may result in items not appearing in the desired order.
To change the order content items appear in select Reorder Content from the Site Content section of the admin left navigation menu.
The Reorder Content page will then load and display the hierarchy of your site content. Select the node whose content you want to reorder. For example if you want to reorder your top level items select Root Level.
After you select the node the Reorder Documents page will load. You can then click on a document and click the Move Up or Move Down buttons to change the document order. Once you have ordered your documents as desired click Save.