CokieRevised: I have simply no clue about how to invate peoples privacy by showing them different display pictures automatically, that I can already change between manually with the /pic command. Aparently you have a better fantasy than me...
soccer5sg: You can read about the commands here:
http://www.msgplus.net/index.php?view=cmdtag
The /pic command lets you change your display picture to one of those you have by refering to the name of the picture, e.g.:
/pic donald_duck
Best Regards