How to post pictures?

[autococker ppl]

Sorry for being a total newb to this forum thing... I was just wondering how the people posting get the little thumbnail pictures below their names. if you could set me straight then please do so. again I apologize for the Noobishnish of this post.

[paintballer42o]

http://www.pbreview.com/forums/showthread.php?s=&threadid=64347
There ya' go.