WOW! Good for you! That's great! Keep on going!
How to move the tracker: Click User CP at the top left, click Edit Signature, and then toward the bottom of the signature page there's a text box with a lot of mysterious coding in it. You can see that it has your start weight/goal weight/current weight in kind of that layout. for example, /198/155/174/ Change the last value to your current weight.