I have no idea if this is the right forum for this topic, or if it's better suited for another forum.
Anyhow, I'm using ParticleIllusion 3.0 to make battle animations (it's a great software, and very easy to use).
http://www.youtube.com/watch?v=Dpmi5pT8QzM
The software can save animations as PNGs. However, I need another software than can grab the many PNGs, align them, and create a sprite sheet to be used in RPG Maker XP.
Any ideas? I know I've seen software like this before, I just don't remember any names.