[Brian Tallant] "The still pictures I am using no longer fill the screen; there are slight black edges on the left and right. The only way to solve that,as far as I can see, is to re-crop all the pictures."
You can solve that by checking the render option:
Stretch video to fill output frame size (do not letterbox).
[Brian Tallant] " All of the jaggedness is still there. So, I don't know what the problem is, but it can't be interlacing because there is no interlacing going on at this point."
What are you using to judge this? If you are looking at the Vegas preview, make sure you set it to Best(Full) before you start to judge the quality.
~jr
http://www.johnrofrano.com
http://www.vasst.com 
