go to imageshack.us and upload a pic.... then when your pic is uploaded (.jpg)
scroll down a bit and you'll see links... select the "Direct link to image" link and copy it
then paste it in your sig..... and add
and it should work :p
example
https://2img.net/r/ihimizer/img413/9681/mrskazok7.jpg " border="0" alt=""/> without the spaces.... give
Hope this helps