I swear I've tried everything in PSP7 to edit kit icons. No matter what I do, saving the file results in the Plugin generating a General Protection Fault (and thus no save occurs). Of course, it works fine for editing / saving any other RSB files, such as map textures or splash screens.
After many hours of experimenting with alpha channels and masks and layers, I finally resorted to saving my work as a BMP file and then using RSBEditor to convert the file to RSB format. Once in RSB format, I edit it again to enable Alpha Blending, like the other kit icons have, and everything seems to work
