HB,
I see that you were successful in getting your image uploaded to the picture album. All you need to do now is copy the image tag that it provides into your post. You can get the tag by clicking on your image in the album. It will open a page that contains two boxes near the bottom of the page. One box has just the link to the stored image, and the other includes the link surrounded by "IMG" tags. Just copy the tagged link and paste it into your post where you would like the image to appear. You can also just retrieve the link from the image properties via a right click menu and add the "IMG" tags yourself. Whichever is easier for you.
This code:
HTML Code:
[IMG]http://forum.shrapnelgames.com/picture.php?albumid=7&pictureid=50[/IMG]
Result:
Hope this helps!