The cache is not at the published location - its just a random road junction, so don't go looking there. You need to solve this puzzle to determine where the cache is hidden, which is not far away.
I decided to name a cache after my daughter as she has always resisted a good caching family walk. I know this puzzle being in her name will cause her to comment in a way that all good teenagers do!
You may assume N51 10 and W000 36
UPDATE - 07/12/14. I have had to move the cache slightly. When you have solved the puzzle TAKE AWAY 6 FROM THE NORTHINGS and ADD 1 TO THE WESTINGS - TOTAL OF ALL 15 DIGITS SHOULD BE 50.