Hi Nightwing,
The screenshot you post at http://i216.photobucket.com/albums/cc53/zymurgy_bucket/ranking-25-may-12copy.jpg appears to be from a tool called Web CEO, which is not an SEOMoz tool. I can't speak to the accuracy of their tool.
It looks like the screenshot you have from our tool at http://i216.photobucket.com/albums/cc53/zymurgy_bucket/rank-checker.jpg puts you at ranking number 5. When I checked "york wedding photographer" just now on Google.co.uk, I saw the same thing that Riplash saw. There are 3 paid ads at the top of the page (in a yellow box), then 3 organic listings under those. After those first 3 organic listings, there is a 7-pack of Google Places results with address info - that is where Davidclick.com is currently showing up.
Since Google Places uses an entirely different algorithm than the rest of Google's organic results, rank tracking tools will often not pick up that ranking - that appears to be what's happening the Web CEO tool - again, that is NOT an SEOMoz tool so I can't speak to its accuracy. As you can see, the SEOMoz rank tracking tool places you at position 5 (because we do pull in Google Places, video, image, etc. rankings where we can) - and that's where I see Davidclick.com in my SERP page. 3 regular organic listings, then 1 Google Places listing, then Davidclick.com as the 2nd Google Places listing, or 5th overall. Hope that helps!