Here are my instructions on how to do this with the installer from Lightscribe's website so you don't have to worry about downloading software from someone else:
1. Go here to download the latest system software: Link Removed - Invalid URL
2. Once downloaded double click on the *.exe file to run the installer. Once it gets to the "operating system is not adequate" error, leave the window open and do not click "OK" just yet.
3. You will now have to navigate to the temporary directory to where the MSI file it extracted is. This can be found in "C:\Users\USERNAME\AppData\Local\Temp". In my case, it created a directory called "{494F8C6F-CB8A-4AF2-B85D-A238A88DB575}".
4. Copy the LS_HSI.msi file to some other location, then click...