Right...

On the main timeline on the "actions" layer, go to frame 60.
In the action script, find the "menu_label" array.
Exchange the positions of the "Designs" and "Latest News" items.

Also...

In the library, open the "1. layout" folder, open (double click) the 'all pages' movie clip.
On the timeline for the "all pages" movie clip go to the "actions" layer.
Exchange the contents of frames 12 and 15.
Also on the "pages" layer, exchange the contents of frames 12 and 15.