At the top of the page, it says
Saturday, 20 March 2010
Orion 15
Chingford, London
If you click on the 'Orion 15' it takes you to an events listing, which I see on a second look is actually for the 2010 event!
I guess this is an old thread still running, with a link to the 2010 listing. That could cause confusion (well, it confused me!).