Dear All

I wish to have Menu Navigation in the following Manner






Now the Sub Product 1 of Product 1 should only appear when Sub Product 1 is clicked from the Right Hand Content Box.
Similarly Sub Sub Product 1 of Sub Product 1 should only appear when Sub Sub Product 1 is clicked from the Right Hand Content Box.

How can we do this, any ideas?

There is a dynamic menu mod that should do exactly what you need. Check out cubecartforums.org