That's a pretty good tutorial.
You should read it sentios, and here's an explanation of the technique my brother taught me.
So, we start off with a picture, since this is more for Yoshi and Hana then you Sentios, so that they can help figure out what tool is what I want, I'm just using flat colour.
Alright, now we ad noise on a new layer, with the x and y size up to the max(These are options in gimp) so that it will be less cloud-like, and more like static on a screen.
Now we use the "colour to alpha" tool in gimp, and turn the black invisible, but we don't delete it entirely.
Now using the levels tool to screw with alpha, we can get different effects, such as the following.
So, any idea what the "color to alpha" equivalent is in photoshop? Added after 16 seconds:
It's 5 AM and I have a headache... good night peoples.