How do I add pics to a topic im posting?

How do I add pics to a topic im posting?
Posted in
Custom Workstationcould someone please answer that and how I get a signature?

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Posted by
Mr.Smiley on Tuesday, November 3, 2009
User Comments
Iron Man on eBay
As for your signature, go to the user control panel, click Profile, then click Edit Signature, there you can do just about anything you want, just remember to try to keep it a reaseonable size and to follow the forum rules for posting.