Thanks for the replies so far guys.
It's obviously a substitution letter code, but I am frustrated by the LTM graphic for the cypher.
Problem is, the graphic kinda obscures some of the letters. So far, I've got a grid consisting of three rows of three.
Top row: ABC
Middle row: IJK
Bottom row: STU
The S was obscured, but I figured that must be it, since the other rows have similiar groupings of letters e.g A before B before C, I before J before K.
It's the other part of the cypher that's more frustrating. I can see an L and possibly what might be V? Broken apart by a right-facing arrow. I have no idea what the upper right hand corner letter must be, nor the letter that presumably opposes L, assuming there's supposed to be an opposing arrow that forms a cross that I'm just not being allowed to see properly.
EDIT:
AH! Of course! It must be D in the upper right corner. And I guess M must oppose L? Assuming there's supposed to be a cross.
Urgh, it is so annoying only being able to view the cypher for a few seconds whilst Javier and Anna talk.