[Plugin: MapPress Easy Google Maps] Awesome!

Hi, I am using mapress for wordpress on a site a this address http://www.bingleyanglingclub.co.uk/…s/coppice-pond – i did the old javascript get centre on the google maps bit – and i got the following: 53.8461975503451, -1.865605115890503 as the coordinates – so i put that in in mappress and it comes up in the middle of a wood about 1/2 mile or so away. Putting it directly into google maps comes up with the correct place – as in on the water!
Am I doing something wrong here – im wondering why mappress is displaying different than google does?