Personally, I think it is a waste of time modifying someones sysmetrix skin. They are simple to create once you understand the coding. Maybe you should use the knowledge and ideas to create a new one and then you won't need permission. I cleaned up and modified quite a few of them, but I just kept them for my personal use, and used the knowledge to create new original skins when I was inspired. Of course, I don't submit work here anymore. So, don't bother looking for mine. Just a suggestion. I think you will feel more satisfaction if you make one yourself.