Every day I get the feeling I shouldn't be doing this hacking since I don't understand it, but, I try to make the custom portraits, I run the step 2 deal and it says bigFILENAME# does not have an indexed pallet and will be ignored. What did I fail at now?
Index the image. Open it in Photoshop, go to image > mode > indexed, and index to an amount you think is good.
200 is probably the lowest I suggest you go, 72 is the minimum.
Uh, ok, but, how would I go about doing that in Gimp? I don't have photoshop.
Help is on the way. Expect a guide for this sometime this week.