Making an animated GIF from an .avi file

Hello everyone, I am sorry if this has been asked before… i tried searching the site for anything like this and couldnt find anything.

Ok, well i have an avi file that i want to edit to make into an animated GIF for a forum avatar but i cant figure out how to edit separate frames from the avi file :frowning: … ive tried converting it into a symbol and trying to edit the frame in that with no luck.

Sorry for bieng a complete noob about this but any help i could get would be greatly appreciated ^^