Click on User CP (the first tool on the upper menu bar)
you will be brought to your profile
on the menu on the left side select
"edit signature" (the first one)
scroll down till you see Edit Signature in a memo box -- you will see something like this in it:
I've highlighted the area you want to look for. These numbers represent your starting weight/goal weight/ and current weight.
Go to Current weight (the third set of numbers) and change the number . Then go to the bottom - and select
hope this helps ya