i find this very amusing as your account is suspended yet you can still post...hmmmm...interesting...
but, on to the topic at hand...you don't really need a file converter if you just simply want to view the video...just get quicktime from apple to play your .avi videos. Or better yet, use VLC media player which is a free download. Get it
HERE but ofcourse if you have something else in mind other than watching, then you can search our
Software and Security thread for the converter.