Importing Alco HH660 Texture

[ET44C4]

I'm trying to import the texture "HH-01_SF2.TgPcDx" into one of my repaints, but I'm having an issue with it. The texture (which is the cab) appears on the locomotive either invisible (like a window texture), or with the cloudy background for the windows as shown below in the screenshot (it depends on what the alpha layer displays). Would anyone know what importing settings I should use to make the windows actually have the see-through glass like texture??

bandicam 2017-07-11 19-20-58-101.jpg

bandicam 2017-07-11 19-22-23-209.jpg