We definitely have a few things in common then, Shrinki.
Yes I use (and adore) MFP - I think it's a large part of my success on this diet before. Last time I tried Atkins I was just going by what's allowed in the book, no weighing or measuring. Now I weigh everything I realize how off some of my old 'guesstimates' must have been - plus when you're faced with writing down everything you eat you feel more in control and more responsible for what you put in your mouth. I do, anyway. It's indispensable.
You can change the settings to Atkins friendly ones via that website, I think.