Hi there, still alive too, (although all the christmas food and a solid gastric flu almost got me..
I haven't given proper development time on the sound aspect, I'll look into this these next days.
How do you tie a sound emiter with a soft volume right now? Simply by adding the property to the point emiter in blender?
About the Z offsets: I'm not sure yet what value to give, because in the future we might want to animate the sky, and that might mean we'd need several overlayed meshes with transcluent textures.. I guess just to be safe I'll give all the flares a value of 3. (that shouldn't be a problem right?) Right now I'm still working with the stable release of PyPRP; so I can't check. I'll only switch to the trunk version once I get all the assets ready.