Animated Battler Help

[BlitzKriegJesus]

I apologize if this question has been asked before, but I wasn't able to find it if it had been. I've got a problem when trying to use animated battlers. I import the sprite sheet into RPG XP and set it as the battler for the sprite. But when the actual battle starts and the character begins to move, the sprite splits in half and becomes a jumbled mess of the original sprite sheet. I was wondering how to avoid this and make it so the sprite uses the correct animations in battle. Thanks.