Shoutbox

You don't need a plugin.

Go To "tools" top of MSN messenger Window

Then to "change Display Picture"

then on your left you will get a list of pictures that you can use
OR
if you don't like them use"browse"on your right

and browse pictures that you may have saved on your computer
click on the picture you want and it will change in your"display picture"..

and you can change them as often as you like..and as quick as you wish..there is no time limit at all!