While I've never done it (several have) one of the approved file types is avi. So I'd save it to your gallery as avi and then post a link in a message.
I thought I had it figured out. I have tried to upload 4 different mpeg's which is in the list of acceptable files and after they load they are nowhere to be found!!!! Help!
Het Marty, great synopsis, but I no longer get two choices of how to post pic in message. I only see the BBcode choice, since you updated the gallery software a while back. Is this correct?