I have several new pics, from October 2008, I will post
I will dig up one of my old Fitness Forum posts, on what I did, how I did it, when I did it (and add other information missing from it), in the event--some of the content will assist you or another forum member.
One thing I can tell you, it simply was not sit ups. Sit ups or any "direct" ab core work, were extremely low in the hierarchy if I had to attach an importance meter to my "overall" exercise program that I performed.
However, what help me the absolute most (without question), is grappling with my diet according to what I liked, disliked, and working with my strengths and weaknesses. And, learning what type of foods (assisted to reduce cravings, and the feeling of fullness), what foods effected blood glucose (and kept them more stable-thus attempting to maintain a steady stream of energy, and control cravings), and maintaining a consistent fitness program and--attacking progression very aggressively in my full body program--that expended a lot of energy.
In the journey, I learned a lot of things about myself, and 2 of them are: 1. While I was high in body fat, I could just create a calorie deficit, and lose weight (and it simply didn't matter what I ate, nor when I ate it, 2. However, when body fat became low, (but not low enough for my personal satisfaction), I had to change my diet, and pull my will-power from my boot-straps, suck it up, and enter a diet, that (for me) was very tough, but I did it and was successful. In addition, I set a plan of action (after I was done) to maintain the hard work I had previously performed.
Honestly, I can not make an accurate assessment (opinion), without actually seeing the problem you are identifying; therefore, until I actually see what you are talking about I am going to refrain from comment--for now. However, be patient apply the correct diet for you, and keep exercising, and it has no choice--but to at least improve. So if you are not against posting a pic, I would then be able to be more accurate in an "honest" opinion.
Thank you for your comments.
I am 47 now, by the way
I will make the post and embed the pics, later today.....
Wish you well with your fitness goals,
Chillen