not sure if that counts as a clue, more of instructions on how to take part - in fact, it is part of the official competition page...
Edit:
On reading past the initial post I realise that I have been a bit of a spoilsport for annon. I had the same problem which I considered more to do with poor instructions rather than part of the competition itself, but can now also see that not realising what the first clue looks like could actually add more fun to the competition (rather than cause someone to give it up as a bad job, which was where I was heading). Bugger, cant remove the picture from your quote...
Edit 2
Nor from my own post, it seems...
Edited: 10/06/2011 at 09:14