Ok, I have a weird problem that I don't understand, at all. I added the reference and when I am programming it accepts the reference to the SDK. But as soon as I run it I get an error saying it can't find the reference.
Error 2 The type or namespace name 'eBay' could not be found (are you missing a using directive or an assembly reference?) C:\Users\Ross\Documents\Visual Studio 2010\Projects\Ebay Evaluator\Ebay Evaluator\Form1.cs 12 7 Ebay Evaluator