How do you put pics right in you posting

I've been doing forums like this for a couple years now and have never really done anythign with pics right in the posting how do you do that so you don't have to have a web address

 

Do you mean forum signatures like mine?

 

Like pictures of something in the message or reply? Or signatures and banners?

 

pictures in the message or reply

 

I think this is what you mean.
http://www.reptilerooms.com/forumtopic-18983.html