Okay. After somewhere in the neighborhood of 4 hours of research and editing numerous lines of HTML code (and if you don't think that was scary, you're sorely mistaken) I've finally found a "Pin it" button that works. There are a lot of different ways to do it, but not many of them work very well. Pinterest's own button is probably the most clunky and difficult of them all--go figure. But I finally got it all worked out. So I hope you will all go pin to your heart's content and that you enjoy this new feature!
Just remember that you can't pin from the home page, you have to go into each individual post. Have a wonderful day!!