I've made some more changes to the CSS now which should make the menubar and headers look better. I also experimented with text shadows, but they didn't work very well, though I may try that again eventually.
October news and articles have now been archived, and I've made some changes to the menubar. The kludged look that it had before has now been replaced with proper CSS borders and padding. This won't work properly in Internet Explorer 6 or below, but then I don't consider it my responsibility to support browser that outdated.