DrOrgaZmo:
If only one picture, you can attach it when you compile your post - there's a 'browse' button which lets you pick a single (one only) image to attach to a post.
If you want multiple images in one post you have to use the "file upload" utility - right down at the bottom of the page. That will put the file on the civfanatics server. Then you can use the:
[ img]http://www.civfanatics.net/uploads3/yourfile.jpg[ /img] syntax to include the image. There is a limit of no. of images per post, and smilies are images too....
If the images are already on the web you can directly refer to them with the [ img] tags, e.g.
[ img]http://www.not-a-porn-site-honest.com/images/cheerleader.gif[ /img] or whatever the link is.
Note that some sites (like geocities) won't work too well that way. And you should not have the spaces in [ img] and [ /img], I had to put them there so that VB wouldn't treat the text as image tags....