You can actually have more then one pic in your post.
What you need to do is find a place to host your pictures (ie a free web hosting place). Then you can use the "IMG" button (or the image tag like the example below) above and enter in the address to where your pictures are.
Like this:
![]()
[url]http://nopoop.cs.net/icon/cs.net.24028.jpg[/url]
![]()
[url]http://nopoop.cs.net/icon/cs.net.76902.jpg[/url]
![]()
[url]http://nopoop.cs.net/icon/cs.net.52740.jpg[/url]
replace the <> brackets with the [] brackets...
(http://nopoop.cs.net/icon/cs.net.24028.jpg)
(http://nopoop.cs.net/icon/cs.net.76902.jpg)
(http://nopoop.cs.net/icon/cs.net.52740.jpg)
pictures borrowed from Nopoop's Wallpaper Collection (http://nopoop.cs.net/photo_viewer.cfm?currentcat=33&access=0)