The link to the forum on the index page (http://friendsoffulham.com (http://friendsoffulham.com)) is still trying to send visitors to the websitetoolbox forum. The only way in is to go to the home page and then click on 'forum'.
Although you have a 'home' page, the search engines always assume that your index page is your home page and will automatically open that one when someone types the name of the site in the search engine.
Thanks Teabag, I'll fix that