@ISGC - Sorry I don't know where a palette file needs to go in Vista. Check your gimp preferences (file locations) and it should tell you where the palette file needs to go.

Foreground and Background (FG and BG) refer to the two colours (by default black and white) that either painting will use or erasing (when no alpha) will use.

@crackersncheese -
Hide this new layer (by clicking off the eye icon). Create a new layer called “Grass Bumps” and fill it with 50% grey. Set its layer mode to overlay. It will appear to be gone now. That is how overlay works. 50% grey doesn’t change the underlying image, while darker shades darken the image and lighter shades lighten the image.
Now apply a bump map to this “Grass Bumps” layer using Filters->Map->Bump Map.
So create a new layer. Call it "Grass Bumps". Fill it with 50% grey. Set its layer blend mode to "Overlay".
With that layer ("Grass Bumps") active, fo a Filters->Map->Bump Map, and in the first drop down box make sure it reads "Grass Bump Map".

This filter applies a bump map to the current active layer, using the layer selected in the first parameter of the dialog box as the source of the bumps.

-Rob A>