Graphics won't convert to flats...

[Pyro the Magma Fox]

I use SLumpEd (My SLADE won't start...) and no matter what I do, I can't convert those 3 graphics into flats... (They have the word 'Graphics' next to them) I am making a Sonic 1 themed texture replacement, and I really need help.

EDIT: Also, Deep Sea Zone crashes on loading...