You can now position images in posts.

[img align=left]url[/img] will position an image to the left of the text.

[img align=right]url[/img] will position an image to the left of the text.

there should be no line break after the image. Images in posts were given formatting to make them better stand out from the text.

to center an image do [center][img]url[/img][/center].

You can also specify:
width=number in pixels
height=number in pixels
alt="a short description of the image for text readers"