http://imagizer.imageshack.com/img673/9454/brdP5o.png


http://imagizer.imageshack.com/img538/8431/yu6Bjy.png

When clicking on the picture icon, delete the http:// that comes with the hyperlink and copy and past a link in. You don't have to enter anything in 'enter description here' and such. Just leave it and make sure you have one http:// and save it.

Your signature is in your profile after selecting edit.