http://www.chessforschools.co.uk/
And since this is on the ECF site now:
I'm not sure how schools register over the next couple of days...In order to be able to plan the production of Chess For Schools it is necessary to know the size of the production run. To that end applications for participation in the scheme will not be accepted after Friday 5th December 2008.
Chris Majer, ECF Chief Executive