I've had a go at processing the AVI. I must say, it's harder work with ordinary data like this. So, I'd suggest if you can get a result you are happy with from difficult data like this, then you will be thrilled when you capture some magic data on those elusive night of good seeing!
Here's a screen capture of the AS!2 alignment points and settings:
Here's a screen capture of the R6 settings:
Here's what the Gimp processing looks like:
And here's the final result:
-Ivan