Those are both very good instructional videos. There is also our free learning page at
http://www.axtell.com/learn.html
I found it easy to learn in 3 months. Keep going!
Also, you might want to join one of the VENT mailing lists, so you can talk about vent directly with hundreds of those who do it all the time. You can find links to the groups at
http://www.axtell.com/links.html look under Ventriloquism.
Ax