One of your problems is reading comprehension. See gianni about that.
I said the slave trade was illegal after c. 1808. I also said that there were individual criminals using old clipper ships, but they were not sponsored by the New England states and were not operating openly. In fact, your own article with the picture you claim incorrectly to be of slave ships in New York Harbor, relates three stories about the illegal slave trade an one is about a Frenchman and another is about a guy from Baltimore, Maryland - hardly a New England state.
Get back to me when you can get your story straight.