Yes, this is possilbe. I viewed source on your page and this is the html that b2evo outputs to display the bloglist:

<div id="BlogListC">
<ul id="bloglist"><li><a href="http://www.cartmel-bar.co.uk/index.php" class="BlogButtonCurr" title="The Cartmel Bar Blog">Cartmel Bar</a></li>

<li><a href="http://www.cartmel-bar.co.uk/index.php/harry" class="BlogButton" title="Harry's Blog">Harry's Blog</a></li>
<li><a href="http://www.cartmel-bar.co.uk/index.php/princess" class="BlogButton" title="Her Princess Diaries">PrincessBlog</a></li>
<li><a href="http://www.cartmel-bar.co.uk/index.php/snug" class="BlogButton" title="The Snug">The Snug</a></li>
</ul>
</div>

If you want another link to show up in that list, then it needs to be a li inside the div labeled id="BlogListC". Here's what I think would be the easiest way to accomplish this. Open up the _bloglist.php file in your Kubrick folder (or whatever your skin is called). Find the line that looks like this:

$blog_list_end = '</ul>';

and make it look like this:

$blog_list_end = '<li><a href="http://www.cartmel-bar.co.uk/forum/">Forum</a></li></ul>';

Thanks very much for your help. I had tried to edit the bloglist.php but couldn't quite work out where to put the link in it.

Your post made it all very clear. I've got it working on my site now thanks to your help.

Cheers.

Looks great.