hi again,

if you have a link of a host picture (photobucket? it's free, register and upload a picture from your desktop or www.tinypic.com) then you'll see three/four different links, copy the one that has " IMG " in it..

..then in here, go to
- USER CP
- EDIT PROFILE
- PASTE (in where you see signature part)..

hope you can figure this out okay.