okay, this is the harder part. but its kinda fun to have a signature. and dun request me to make signature, cause i dun really know how to make them and you can see from my existing sig.
anyway,


1st, go to profile and click signature

2nd your sig must be in a link form(if not i suggest maybe you upload your pictures on flickr)

3rd click on the word "image"

4th paste your link there and save

-----WAIT!!!! thats not all-----

then when you want to post,scroll down to the options section and check the check box that says "Attach signature (signatures can be changed in profile)" and poof!! you got your sig on your post. but remember! each time you post you would have to check the box again