I'll answer what I can.
You can put in a bunch of keywords/links for each linkwheel. You can go back and change them to post new links for future articles.1. Is a complete link wheel just target to one set of keywords? So if I have a site about cars, do I have a complete LW pyramid for the keyword "classic mustangs" and then a completely separate LW for "tricked out hondas"?
My guess is it will keep posting the spun articles. It doesn't end as far as I know.2. If I load 100 (spun) articles on a LW, what happens when they run out?
Ping until they get indexed or use an indexing service. I ping some stuff daily if I am not using a service.6. How often should I ping? Only new ones daily. New plus old daily? Weekly?
This should just be one part of your overall SEO process. Don't expect to rank tough keywords with this program. This is just a great way to add some diversity with depth to the backlinks.8. Is there anyone that has put together any other video tutorials about best practices or sites talking about this application? I have some heat on my to perform in a tight niche and I just want to make the best of this program.