LeeAnn, I got in trouble for purchasing "pirated" sewing machine designs from Ebay. But this old lady didn't know there were laws about copying them or selling them. For instance, after I purchase a valid design from a valid dealer, I may not sell it or even give it away. If I were to sell my machine and leave the designs on it that I'm working on right now, that would be wrong too.
I asked how I could protect myself in the future. I was told to ask the seller if the design had been copyrited and if they answer it was I was to print out the response, label it as to which design it covered and keep it, in case I was ever accused of making an inappropriate purchase of that design.