From the great AMIT forum (check the forum link at the top) I found a link to a blog website from Nico : http://mundoknopfler.blogspot.com/ with some great versions from Sultans Of Swing.
It turns out to be the from Guitar Hero 5. These files are great because of the 8 extra seconds at the end of the song.
These seconds are never been heard on any version of Sultans Of Swing.
Enjoy and play it loud!
Here is the Music Player. You need to installl flash player to show this cool thing!