Don`t whether this will all be known to you but i`ll tell you it all anyway.
The latetest version of Premiere is called Premiere Pro 1.5. It is a very stable, very good NLE program that a lot of people are using. The GUI has been changed from 6.0 and the A and B editing has gone.
I think the reason that you are having some problems is because you are using a DVD camera. These are very tricky for editing with on a PC. The best from of video for Digital Editing. Capturing DV through Premeie Pro is a dream. So far I haven`t had a problem with it.
Hope this helps.
All I want to do with the rest of my life is Edit.