It's on the widget and it's worth 5 Swagbucks. If you don't have a widget of your own on a blog or something, check this one out:
Go here and scroll all the way to the bottom. The Swagbucks widget is on the very bottom left. Click on Swagcodes and enter the code at www.swagbucks.com in the upper right hand corner in the little grey box that says Swag Codes.
Hope you get it!