Well, *I believe there was a post like this before*
you could go to photobucket, click on a pic, and go to the IMG code, and copy and paste.
Or go to the "Insert Image" box under the paperclip thingy and insert the URL, OORR click the paper clip thingy and upload something from ye computer, It doesn't seem to work for me though. xD
if you're tryin to put an image, just upload ur pic to photobucket or some other image upload site like tinypic and in "Edit Signature" in User CP type "[IMG]-the link from the image site-[/IMG]
in fact why not copy and paste exactly what u typed in ur sig here, and cut off part of the [IMG] tags if uv used em (use IMG instead of [IMG] just so we can see what uv typed inside it)
RIN-MAZING SIGGY FROM NUME!!! ♥ Oh god, she's the best ^ ^ And another one! Though I've run out of images to post here.
Spoiler: Gifts
AMAZING SIGGY FROM MAMBA!!! ♥ AMAZING COLOURBAR FROM NUME!!! ♥