I know that a lot of my friends have used Airborne, so I thought I'd post this about the class action suit if you haven' seen it:
http://www.airbornehealthsettlement.com/index.htm If I understand it correctly (and I'm sure I do), you can get reimbursed for up to $100 if you have a receipt or other valid proof of purchase. You can also get reimbursed without a valid proof of purchase, but only for a total of 6 products (with pre-set prices).
It's not yet approved by the courts, though, so the settlement isn't for sure.