Current page on page menu bar

Hi

I'm trying to highlight the current page on the page menu bar of my site in the following section: http://www.holiday-villas-to-rent.co.uk/spain/

It remains highlighted for the parent page but when I navigate to its child pages it disappears. I'm using Atahualpa 3.4.1.

Also, does anyone know how to highlight current page for ALL li elements in an ordered list? I can only get it working for child li (See left menu) Help would be much appreciated. My code is:

#menu li li.current a{
background-color: #E5C094;

}

Regards
Dale