i really down with this thing.i just tired that to put i picture in the sinature you have write the url why just upload the picture intead.please reply :( :( :(
Go to http://imageshack.us/
Click "Browse" and select a pic from your computer.
Click "Host it".
You should be directed to a page with codes.
Just use one of them and put it into your sig.
Imageshack is great, but if you would like to keep track of all you pictures you uplaod, try signing up for a free Photobucket account at http://www.photobucket.com/