Well Raven you have to have somewhere to actually upload your pictures like hometown on Aohell or something like that. Don't use places like Tripod or Angelfire, because they won't let you link to them.
Then once you have them uploaded somewhere you link to them using the img tag for example (minus quotes of course and substitute an "i" for the asterisk :))

"[*mg]http://www.fromhell.com/images/satanschicken.jpg[/img]"

Then you should have a picture show up on the forum...
It's just that easy!
Enjoy, and let's see some of those tats.