Sue, sorry you are having problems.

I have never liked the Xara NavBar so you might consider a different approach.
As your menu is so deep, wide and extensive (c.f., Archie), I would instead develop a mega-menu.

This can either be a separate layer or a new page that handles both Main and Variant.
You then layout your Links as you see fit. All are visible so there is no need for sub-menus and you can have different layouts (lineage), images and thumbnails.
Using a Page approach, you would need a Back Link; javascript:history.back(); should work.

Acorn