All you need to do is edit the sources.list (as root) with your favorite text editor and change the word "testing" to "unstable" or "sid" (the name of the unstable branch).
Then from the root CLI type apt-get update && apt-get dist-upgrade. It'll ask you some questions and you should be on your way. Everything should go okay.
I assume the duplicate repositories listed are just a typo in this thread...
Last edited by pljvaldez; 12-30-2005 at 04:34 PM.