I noticed that in newer versions in Essentials, game creators can use Animated Pokemon. I am using Essentials 08 because that is what was available when I started game development in 08. How would 08 users add animated Pokemon??
I suggest upgrading, if you have your own scripts, just re-add them to the new Essentials, other than that, any scripts that you have, may probably not work if you just add the animation thing to yours, I may be wrong, FL . or Maruno will probably be able to answer this more thoroughly though
I know nothing about animated Pokémon sprites. I thought I should just say that.
I tooka quick look and fond that the current version can detect sprites when the sprite is ".gif" and animate it (search for ".gif" and "class GifBitmap").
Your version probably don't have this class, there two fix:
1-You can paste this class with adaptations to work with a old Essentials version. This require a good script knowledge.
2-You can update your version. You probably need to spend a huge time to adapt the PBS, the scripts and the scripts in events in your game to the newer version. With this you can use several new features as well.