I am really confuse,i already have Avatar and signature .There's no problem with Avatar but with Signature....
I tried to resize it but the signature i use are from URL,I CAN'T TAKE IT ANYMORE.If i can go to website where
i got it and change it ....but that's Impossible.PLEASE SOMEBODY TELL me how to size Signature .....

Photoshop. That or don't use the thumbnail image.