Difficulty with getting SNES pallettes

[mission_failed]

I've been wanting to do several SNES games hacks for quite a while, but I just can't get the pallettes no matter what I try. With Castlevania Dracula X for example, even doing the save state on zSNES stuff that everyone tells me to do, it just doesn't work. I NEED to understand how the freak do I get the right pallettes for each game, anyone can help me out?