Great first animation, Wolfnine!
One of your fighters (I won't say who to avoid being a spoiler) got totally pwned! I watched your full animation several times through, and the ending brought a smile to my lips each time. I know that there was a time constraint of 30 seconds, but you did a really good job given the time allotted!
As for learning Adobe Soundbooth...it's not really that tough! I find that a great resource for Flash Animation sound effects is FlashKit. Just Google it, and you'll find all sorts of excellent sfx. You could even add them to this one and replace it with the new version if you desire.
You've gotten some excellent reviews! Keep up the good work!
~Your Friend from WOL, ChronoNomad