uhhhh...hmmmm...didn't Ol Farty show you how to do this? boy, what friend he is...
anyway, first, you have to u/l the pic at an image hosting service of your choice (ie. desearch.net, xs.to, imgspot.com, moast.com, imagevenue.com, etc.).
once you hosted the pic, then copy the link. just paste the link in the "post reply".
i hope this helps a bit.
edit: oh, btw, you really don't want to post your "real" pic here...for your sake.