Some CSS help s’il vous plaît

[MarcLister]

Right I've just finished Uni and for my final year project I took on a lecturer's site to redesign.

http://www.firstyearmatters.info/cs/

This is what I ended up doing. http://www.firstyearmatters.info/new/

The lecturer is now further working on my design and adding a forum etc.

What he's asked me to do is to reorganise the layout of the menu on http://www.firstyearmatters.info/new/ so that it is at the top and horizontal like the http://www.firstyearmatters.info/cs is.

Now I'm having problems doing this. I've changed the CSS that I think should control this and the damned menu won't go from being vertical to horizontal so I ask ye for ye kinded wisdom.

I've uploaded a sample page with just the menu and the CSS file for it to my site. If anyone could have a look and see what I'm doing wrong and what I need to do I'd be most grateful.

HTML: http://www.marclister.co.uk/salford/fym.html
CSS: http://www.marclister.co.uk/salford/default.css