transparent shader needed for texture with black background!

I know nothing about shading. I need a shader exactly like Particles/Additive (Soft), except that it needs to use lighting.

Can anyone lend a hand?

What sort of lighting are you looking for? Just brighter when particles are closer to lights, or something more complicated?

It isnt for particles. I tried to use that shader for clouds but it is vertex lit so they appear on the dark side of the planet.