You're using a non-driven dob aren't you? If so, there's no way to do it, other than to let it drift through and capture a section at a time.
Start by reading this article though,
Astrophotography with a Dob, and you'll get some ideas of what you'll need to do, and the frustration you're in for
If you'd like, zip up and upload the avi's somewhere, and I'll download them and give you some advice.