The Yarn used has 273 yards and is classified as DK, but I would say it is light worsted. I think you can easily use needles size 6 with anything light worsted or smaller: Dk, sport, sock, lace, and still get a nice scarf.

have fun!

3/2/12: I have made pictures with more help and instructions if anyone is confused:

http://kalamala.livejournal.com/40860.html