Are you a member of Ravelry.com? If not, it's free to sign up. If you are, there are a couple of people there who have the yarn you're looking for listed in their stash. Click here
to see the members who have this yarn. None are officially listed as being for sale or trade, but if you can't find the yarn anywhere else you could always try contacting them to see if they would be willing to part with a couple of skeins ... one of the members has 22 skeins of the color you're looking for, so it's possible they might be willing to sell you a couple if they don't have a particular project in mind for the yarn already.