As far as the JToolBar goes...What you are seeing in MS
Word is actually 2 Toolbars. So that's what would be the easiest to do is create a second JToolBar.
Now, about the Scrolling JTabbedPane, here is how I do it
JTabbedPane tab = new JTabbedPane(JTabbedPane.TOP, JTabbedPane.SCROLL_TAB_LAYOUT);
You don't need to set the INT value of SCROLL_TAB_LAYOUT.
Hope that helps a little.