Those are hold-overs from the last version of the bulletin board software. To get the bouncing one, you typed

(I think, might have been :bouncing: ). I'm sure Nicko will bring all of them back as soon as he's done with the upgrade to the new software. There are some animated ones now; look to the lower left of the message box next time you post and you'll see the "instant graemlins". Just click on one and it will insert it in your message wherever the cursor is.
[ March 10, 2001: Message edited by: Greg ]
[ March 10, 2001: Message edited by: Greg ]