How do i post pics or links to pics?

[RCPractitioner]

I was trying to post a pic on another website and I can't figure out how to do it. It's a forum like this firingline.com (guns) anyways can anyone tell me how they move images into their post. for instance on the ugly car one here someone was able to post pics of the POS Aztek. How do you do that? Also if I have a pic in my e-mail that I want to post how do I do that everytime I try it just comes up as a white box with a red X in it. any help would be appreciated.

[81tacoma]

Has to be hosted somewhere i.e. photobucket.com then use the [img]tags[img].....Right Click on the picture then properties, notice the address the [IMG] goes before and after the address.