Help with UI Edits

Hey all, I'm trying to change a section of the Enemy target bar to not include a logo, I have attempted to cover this up in Photoshop and it seems to be successful until I log in and the white lettering is gone but the transparent outline of the logo is still there. Photoshop doesn't show it but XM viewer does. Anyone know what's going on?

It would be better if you include a screenshot of what you're doing.

as well as details ... which image is edited, which format/options were used to save it.

<< but the transparent outline of the logo is still there >>
having to assume the image is a TGA, the transparency does not exist in it (in TGA format), the client renders transparent all pixels of the image whose color is the same than the one at top-left corner; if you see the outline of the logo, it means it is drawn with "some color" (light-gray whatever), and you have to replace with all pixels of that outline with the background-color-used-as-transparency, so the color of (0,0).