If you've got the Yahooligans! Instant Messenger, you can have change the way it looks.
Download this silly version and make your messaging froggy!
Note: you will need to have the yahooligans! instant messanging application installed FIRST. If you dont already have it, GO HERE to get it!
Download the Frogland Yahooligans! Messenger Skin (8KB)
(Save the file in a place where you'll remember where to find it again)
Next, Go here for DETAILED INSTRUCTIONS!