This image describes the problem I'm having: http://i42.tinypic.com/282kzlf.jpg
What you are seeing consists of two images:
Image A(with the alien-concept art thingy), depth value .98, the white parts on the image is where the alpha value is 0.0f
Image B(with the play game button thingy), depth value .99, one solid image without any transparency value.
Now, when I first set this up, I expected Image A to let the colours of Image B through where Image A is fully transparent. But it doesn't
Question 1 : Why doesn't it?
Question 2 : What can I do to fix it? Are there multiple ways to fix it?
Question 3 : Is this problem different for partial transparency? If so, how do I make it work with partial transparency as well?