You go to your User CP and select Edit Signature - you then type whatever you want in the box and save changes. I'm quite new myself but I think that you have to make so many posts before you are issued with more character space - hope that makes sense! I think it might either be 50 or 100 posts. Sure give it a try and see, hope this helps, mary x
Im so annoyed with myself ooooooooooooooooh i have just eat a blue riband, slice of white toast, half a cereal bar and why did i do this, the reason is because i am stupid and cos i have lost 4.5 pound i thought i was great.
I will have to be extra strict now. xxx