I was trying the same thing tonight until I found the trick. The instructions are correct for downloading and where to put the file except for one small detail. It is indeed a zip compressed file. All you have to do is change the zip extenction to .wltp and it will show up in the skins option in LW. The first time you slect the skin, it will automatically creat a directory of the same name and uncompress the files in that directory. Presto, new skin