A good friend of mine has developped a very nice messageboard based on the basic one in “Foundation PHP for Flash” (fiends of ED, out of print), you can check it out here:
http://www.mxprojects.com/forum/
it features smilies, images in posts, avatars etc, all in flash, and a nice admin part -which you won’t get to see unless you for over $150 (i think it was)…
Check it out, nice job, and you can even buy it from him if you’re too lazy to code 