I'll try and explain this as well as I can! This seems to happen on all pages of my website but here is an example:

http://www.animates.org.uk/html/new/DeepingMap.html

To have my CSS menu on top I up the z-index, but then the map doesn't work/isn't interactive (links work though on IE), however if the map is of the higher z-index it works fine but the menu obviously falls behind it.

I need to be able to have clickable items high up on my webpages! Help please, on a deadline!!

Hannah, you've got an extra DocType in your body with the menu code.
Try following these steps to get your menu in place and see if that helps:
http://www.coffeecup.com/help/articles/ … -designer/