Skinning Singapore to match Kubrick theme?

Can anyone possibly please point me in the direction of an article that will tell me how to skin Singapore to match my green mod of Kubrick? (http://www.creativeyoungteam.com/). Or at lease hint at which files/templates I need to look at….

Have done a lot of trawling here but no detailed explanations of anything, bearing in mind that I’m a beginner as well, I would be very grateful for any help on this. (Can’t believe there is still no 100% off the shelf integrated plugin solution that makes building a photo gallery easy!)