For avatar: Go to User cp.. n choose edit option... Scroll all the way down.. n u will see change avatar n click on that... a new page will appear n u can see a lot of avatar... but if u want to use ur own avatar.. u can either upload that pic straight from ur computer or u upload the picture to a server n copy the link of the picture.
For signature with picture: U muz haf done or made a signature.. upload it to a server.. n go to user cp as usual.. but this time choose "edit profile" copy n paste the link of the signature of urs .. with the initial of [/img] n the end of [img]
Hope this helps
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