I learned the answer to my problem. Althought this method takes some extra steps, its a sure-fire way to adjust a 4:3 image to a 16:9 image in SD after a sequence is outputted.
So, for inquiring minds, I’ve left a bread trail to help others out of the dark forest…
After exporting each sequence in either DV NTSC 4:3 or DV NTSC Anamorphic
1. Open each sequence in Quick Time
2. Hit Command J
3. Go double click Video Track
4. Uncheck Preserve Aspect Ratio
5. Make the frame size 720×405
6. Hit return and the frame size is changed to 16:9
6. Save the file.
Walla! My thanks to Larry Jordan for the tip.