Fantastic result Jacquie
You are right about VDub being a little less than intuitive! One of it's best features is the ability to save files in pre-defined sizes which is handy because LiMovie (the occultation timing analysis program) can only handle 2 Gig files. I shan't spoil the fun of trying to work out how to do it just yet, but I have been meaning to produce a 'how to' some time, because it isn't so straight forward!
I hope you have downloaded Occult Watcher ...