I seperated the thread from the media thread, since this is becomming more about skinning now
In the template file, 3 files where present. Mini_body speaks for itself.
The mini_windows and mini_windshield are for the windows. The first one is for the side windows. If you open it, there are several important layers in it. To add the number in it, first make a new layer. Then place the numbers in that layer, in the color WHITE! You can do the same with any name's if you'd like.
Next you have to make it non-transparent. To do this, select the numbers (CTRL Click on the layer you have made them in), and go to the ALPHA layers. There you will see 5 layers, the RGB layers, and 1 ALPHA layer. Select the ALPHA layer, and paint the selection from the numbers WHITE. White is non-transparant, black is full transparant. Select a shade of gray to get semi-transparancy.
The Windshield file does not need editing, as its the outside view of the front window. Just make a .dds from the PSD file, so you can use it. This is not mandatory, as I have a default one here to use.