Maybe there is a misunderstanding. I’m saying that only Tomjoad knew who he or she was and Tomjoad is no longer here to give you an answer. All I know is my own designer that I work with on Peercoin.
If all you need is high-res graphics, then there’s no reason to go through a 99designs contest as that is for new logos. Just find a good designer, show him the low-res versions and he can remake them for you from scratch in high-res.