I am not the author of that skin though it looks like he used a few of my graphics like the skulls on the buttons and such. I think the author of that skin can be found in the forums located here.
http://www.eqclasses.com/forums/ Best of luck to you but as a side note, as of the PoP release patch, all custom UI's are broken and will need to be updated. Many authors will be waiting a few weeks to update these skins too, because SOE/VI will be breaking the UI's every patch for a few weeks while they work out the bugs. Most skin authors will wait a while for the UI to stabilize before updating them.