but images, to my knowledge, can not.
Yes you can, use a alias, then call it and replace it with the icon you want to see, but it's limited for you, no one else in the channel are able to see it..
alias
{
return bla bla bla
}
and so on. seen it in other scripts, but i think it just looks messy, if i want that type of smileys, then i use msn