I have to say that that style XP skin looks pritty crappy, It cant handle real transparancy so they do the old one pixel on one off trick. It was very clever when windows 95 came out. You could use the same technique with WB if you wanted. As a mater of fact you could run that very skin with Windowblinds, so you dont have to switch to Style XP to use it. However I would recoment you look around for a bit, i sure you can find somehting better looking, and better crafted.
Sorry, Im in a bad mode tonight.