A Windowblind is built in Skin studio (SKS) The first thing you should make is the startmenu. Complete each section in SKS. You can open SKS and load the Diamond skin into it. This skin can be used as your template. Each section needs to be skinned. Make new images for for each area in each section that is showing images already there by making your own and replacing what is there with your images.
This all sounds easy but a lot of time will be needed to do it correctly.
Here is a link that will let you make a complete WB. There are no shortcuts when making a WB. Take your time.
https://dl.dropboxusercontent.com/u/3083208/Files/SkinStudio%20Tutorial.zip