I used to have 'Tag this to del.icio.us' at the bottom right of each entry on the front page, but I only just found out that it tags the page that it's on. This means it was only supplying the details of the front page, and not the individual posts.

You can probably see the problem. Unfortunately, I originally tested it on a post, rather than on the front page. I want to apologise for any inconvenience if any of you have tried tagging from the front page.

I've changed it now. You can't tag to del.icio.us unless you actually are in a post, rather than just the front page, and then you can tag to your heart's content.