It looks like you're new here. If you want to get involved, click one of these buttons!
Lakes Runner in Ambleside sell them ( http://www.lakesrunner.com/ ). I picked up a pair a few weeks ago, but can't get on with them; my toes are too long and they feel like they're cutting the blood supply off. They'll be great if they happen to fit you well, but mine are no good sadly
(P.S. you do realise the original post is a year and a half old...?)