Advance Sprite Palettes

So, I'm using FF6Tools, the online ROM hacker thing to try and make a mod/hack.

What I want to do at the moment is replace Edgar and Sabin with Biggs and Wedge.

Seemed easy enough. Export the "Soldier" sprite sheet and import it over those 2.
But when I do that, they show up as the green soldiers. I know that Locke's sprite palette is the only one that makes them show up as the normal brown soldiers, so naturally I set the Palette color to his when I did all this, but that didn't seem to do anything. Do I have to do something special to make the game use Locke's color palette on Edgar and Sabin? Can I even do that?

Forgive me, I'm quite new at this.

Btw, any way to turn that Pig sprite in my user information on the left over there into a Ghost?