Murph,
That one may be easier to fix. That site uses javascript to send you to the links. It appears that your machine cached an impartial page load. IE the javascript that handles the redirection never got loaded.
Try this first and see if it fixes it. Browse to the page with the trouble, let it load completely, then hit CTRL-F5. It should attempt a full reload/recache of the page. Try the links. If they work, your good.
If not then: close and restart firefox, but don't browse anywhere other than your default start page. Click on Tools/Options and click on the privacy icon. Click the clear button beside the history section and the cache section. Then browse to the page and try it again.
Let me know if either of those fix it.
Getut