When in doubt, go down to the bottom of the page to the drop down window.. If you see someone with a grayish button by their name- that means they are online, but are on another section- but here. If you see a green light button next to their name they are on the page you are on.
Using the "main drag" drop down windown I just mentioned, if you go alllll the way to the top of it is the user option. That opens a page you can add/edit your signiture etc. To add a photo to your signiture- you open the signature option- type what you want then min. that screen, go to tinypics or photobucket load your photo you want on your signiture. ( I know you know how to do that..) after it uploads- you want the line that says "/img/. copy that line, go back to the signature page and leaving a space after what you typed, paste the img number, leave a space. You might want to click on downsize ( makes it smaller) - anyway click on "save" and done!
Then go backkkkkkkkkkkkkk to the magic little drop downwindow and pick another place to go... clear as mud??? lol..