How to make background transparent TGA?

I'm trying to edit a new interface, but I can not let the .tga with transparent background. Could anyone help me?

And sorry my English ^ ^

its called an alpha channel <.<

But I've tried and failed to use Alpha Channel.

Post a picture of your main Photoshop/GIMP screen. *Use prnt screen to make a screenshot.*

*whistle* Png has also a Alpha Support */whistle*

Quote:

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Originally Posted by HellSniper

*whistle* Png has also a Alpha Support */whistle*

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Good thing I talked about tga and not png ...

But okay, I understand what you mean.