Okay I tried to delete the version.txt file and the skin still didn't work it just came back when I tried to apply it again. I checked the version.txt file in notepad and the version number matches up with my Limewire version number (4.18.8).

Maybe I downloaded the file incorrectly? All I did was when I hit save on the download, I added .lwtp to the end of the file. When it downloaded it, it showed up as a 674 kb LWTP file. Originally there is no separate folder for it but it came up when I put into the .limewire/themes. The only thing in the separate folder is version.txt. Is this correct? because the other themes I downloaded were zip files and they worked correctly once I extracted them. Also the LWTP files were of smaller size on my other skins and the separate folders were of larger file size and contained multiple files.