Last try for now...
At the very top of the page is a dark blue bar. Click on PANEL, then edit signature in the right column. When the next box opens click on the photo icon then add from url. Out of all of that gobbledy stuff you'll only need http://i256.photobucket.com/albums/hh170/LifeIsGoodPhotoBucket/signature_1_zps6302edfc.gif