The web site was upgraded on 20 June 2006. This upgrade provides a significant performance improvement. We also added some minor features, including an improved "contact us" form. (Apologies to those who tried to use the contact form just after the upgrade and had problems. It should be working properly now.)

The real test of any upgrade is when you, the visitor, use the site. Please accept our apologies for any inconvenience while this work was in progress. If you spot problems, especially broken links, please tell us about it. Thank you.