Portal Gun Re-Skin Help.

Hello people, I’m having a problem making a custom portal gun skin. The basic outline of my problem is that whenever I take my custom texture back into VTFScape all parts of it that should be black become transparent. I think it’s something to do with the Alpha format but i’m not sure.This is what it should look like:http://i.gyazo.com/69fce4d50f9798ee74a3a54f3e70d2fe.png and this is what it looks like when I import it back into VTFScape: http://i.gyazo.com/daddaa51a791de9d99d6eea68c1b7a31.png

Any suggestions would be helpful.

P.S. If anyone thinks they can sit down and run through it with me, my Skype name should be eggasm , as is my Steam ID.