Is there a plug in or a block of code I can add in order to always display submenu?
The only time I can see the submenu that has a red border around it is when I click the menu item "SHOP", I would like the submenu that has a red border to be visible on any pageall the time
You could do this at the theme layer by editing page.tpl.php and printing $secondary_links.
You might also just prefer to use the Menu Block module, which has some pretty handy config options: http://drupal.org/project/menu_block