i don't understand the instructions to extract the files, can u explain it? and yes, i have windowsblinds.
Steps 1 -6 are pretty simple, just do as they say.
The command line part is harder. Download the file ZuneDesktopTheme.msi at the link Zubaz gave. Save it to a folder of your choice. Remember that location. Maybe you can put it in C:\temp to make it easy. Make this folder if it is not already present on your PC.
When you perform steps 1 - 6 you will have the command prompt.
Change directories to the folder (C:\temp, for example) where you have saved the file.
Then type msiexec /a c:\temp\ZuneDesktopTheme.msi /qb TARGETDIR=c:\temp\zune
This will extract all the files in the MSI file to the c:\temp\zune folder
Then you can use the tool to convert the MSStyle file to a Windowblind