Here's a good place to start.
Generally it's hard to just take someone through editing an entire AMV without physically being there or dedicating a large block of time (AMVs can take days-weeks). Some handy advice might be to go ahead and edit an AMV as you usually would, export it and render it and have members around here "beta test" it for you. By this, I mean you send them a copy of the AMV before you release it, and have them give you feedback on it. Based on that feedback, you re-edit the AMV or change some scenes around and either repeat the process or release it to the public.
In my personal experience, it's the beta testers I've had over the years that really fueled my development as an editor and taught me what the audience and edits see that I don't see.
If you need any help with beta testing, I have a free thread in the opinion forum. I don't have time to do a complete walk-though, but I've always got an open ear for beta tests.