Sorry for the downtime, but it wasn't my fault - honest!
The data centre in which the server sits that hosts the DNS and the forum for this site was attacked last Sunday night. The attack was a zero day type and took down around 2,000 servers and over 100,000 websites.
Details can be read here: http://www.theregister.co.uk/2009/06/08/webhost_attack/
New servers have now been acquired and configured and we are back online. Unfortunately the forum has had to start again, so please go and (re)register then chat away.