The darn thing won't let me update it. I go through all the steps to change it. It say's it was successful, then when I post it's the same old weight. What oh what am I doing wrong?

What is it you are trying to change to? I can do it for you.

I'm showing a weight of 248 now. Is that the new weight or the old weight? I'm just wondering if it's a cache issue on your computer (so that we see the new weight, but you see the old weight), or if there's something you're not doing right when you update it (so that everyone sees the old weight).

I wanted to update the current weight to 246. Those 2 pounds were hard! LOL

OK, are these the instructions you followed?

go to your user CP page and choose "edit signature", then

2. Edit your signature tracker code. You can keep the same images without having to make a new code, and just update your weight.

Look at your code and you will see three numbers that represent your Starting weight, Goal weight, and Current weight. The last number is your current weight and is the only one you need to change.
Change the current weight to your NEW current weight. Make sure you don't change anything else, or you may have to go make a new tracker. Now save your signature.

and are you sure you hit "save signature" at the bottom of the page?

It's showing the correct weight now--whatever you did, it worked!