FSX / FS9 Livery Painting Tutorial - Video #6

hi i do my own panting and i am trying to paint a new texture but idk how to make certain places transparent so can you plzz help by the way i use paint.net and you know how on caribbean airlines the words go through the glass but it does not show i wanna know how to do that thx.

Hi, I´m having a problem with my textures. When I turn the camera to the front view of the plane, textures tend to appear kind of blurry (pixelate). I cannot get that refined borders and clear lines. It looks like smoked.