I won't go into details but your going to need to make some changes in the style properties, add some changes to the extra.css template (because there are some areas in that styles navigation/dropdown that are not supported added in the SP) and you will also need to be fluent with designing in a graphics editor because that navbar is all imagery from the selected, hovers to the maintab and tablinks.
I'm quite sure a template edit will be needed since the .visitorTabs area have been moved out of the navigation area and moved up by the moderatorBar area.