Alright, it's me again.
So I'm trying to start over with Cyanide's Narutorial again... and I'm kinda confused on the very beginning.
I copied the sheet into GIMP and converted it to 256 colors via index mode....
However, when I checked the pallette map, instead of seeing the only 16 colors in the color map as shown in a screenshot in the narutorial...
I see a color map filled with 256 colors:

I am not very familiar with GIMP.
Anyone know what I need to do to convert the sprite sheet to 256 colors and have the only 16 colors instead of the color map I have currently?