Okay.
there is a very important tool that you can use called the magic wand. it selects or deselects areas the picture of the same colour.
so, for example, you remove the horns from the first frame of the SE direction of the amazon animation.
then you select the head using the rectangular selection tool.
select the magic wand tool and, while holding down left control, click on the area of pink behind the amazon's head. it should get deselected, leaving you with just the head (you may need to clean up around the head using the rectangular selection tool and holding down left control)
now you copy the selected area by pressing ctrl and "c", and paste by pressing ctrl and "e" (ctrl and "v" pastes it as a new image)
click and hold inside the pasted image, which still should have the flashy line surrounding it, and while holding it, you can move it around and position it where you want it to be.
now i would save and check to see if it looks alright in flicster (remember you have to select a different direction and go back to the one you are editing)
if the animation is going too fast for you to see, slow it down by moving the slider on the right hand side all the way to the right.
if it is okay, you should be able to progress to the next frame and paste the head again.
keep checking back to flicster, and if you see that something is wrong, i suggest clicking the undo button until you have removed the problematic pasted image, because moving it by hand leaves gaps and other stuff that can be a ***** to clean up.
i hope this helps, and good luck, young big, handsome, axe-wielding apprentice!