Transparent Images

[LeetKrew]

I read the tutorial on how to make transparent bodies and everything, but how do I make normal PNGs transparent, and also visible in the GraalEditor..

I had a 24 bit image, which looked transparent online, but I couldn't see it in the GraalEditor, so I made it a lower bit and it worked in GraalEditor, but it wasn't transparent.

How do I define the transparent background color in PaintShopPro so that it shows in GraalEditor as well as it is transparent.