Sub Menus Drupal Site

We have a sub menu that show in the right Nav Bar for Travel on our website [login to view URL] with topics listed that I added through the create content. I want to be able to do the same for the Surgical Garments so that I can break that page up a little and to be able to add the pictures of the Garments. I We would like to have some one create this new Content type for me as well as provide instructions on how I can do this myself for other items.