The seventh in my Year of Puzzles series. This month you've got a codeword puzzle to solve. My very first geocache hide was based around a codeword, so I had to get one into this series somewhere.
Solve the codeword (the image is in the gallery for you to save or print), then use the values you've obtained for each letter in the formula below to find the cache location.
To start you off, I'll tell you that A = 17 and F = 4. That should give you a good start and things should fall into place without too much difficulty, but don't hesitate to ask if you need a nudge.
Northings: 50° (Q * M) . (U - R) (N + O + Z)
Westings: 003° (W + V + S) . (H / I) (C + T + Y + Z)