I added a code that will let you put Flash animations in your messages (or sigs). Here's an example of what the tag can look like:

(flash="http://www.zelaron.com/gunnar/reply.swf"]width="98" height="22"[/flash)

Replace the ( and ) in the start/end of the tag with [ and ] or it won't work.
I will add a button later that will make it a lot easier for you to insert flash animations in your messages, but this will do for now.

Oh yeah, here's what the flash example I did would look like:

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram