Please do not double post. I just answered your question here:
http://forum.snitz.com/forum/topic.asp?TOPIC_ID=41378
Here's my reply, in case the moderators want to lock the other one:
Originally posted by TestMagic
You would simply replace the current gif with an animated gif. If the sizes are different, you'd have to change them in the right places.
If you want to make a smilie animated yourself, you'll need a graphics program, and lots of patience--an animated gif actually consists of many images, sometimes twenty or more.
Post back if you need further clarification.
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