I followed the instructions from your .png file and was able to put up my image in the background, so thank you!
It fits just fine, but you can’t see all of it — it’s two tiny people short :p If you could tell me how to define the size of the image, so that you could see all of it and still have it look good…
Sending you again the link to the image: http://flic.kr/p/96pSa4
and my tumblr: http://apeoudecarro.tumblr.com/.