Hello,
As far as i see maybe there is a mistake in the forma.
The standard for a TV format SD is 720×576. The file properties are based on the broadcasting software that they are using. It can be playbox, avid and str…all of them work best with different settings.
About the mov settings – yes you can render mov. For that you need quicktime installed first.
Then in the render options you have .mov format.
In there you have custom resolution. Even if they need 720×570 you can type in there and save it. Field options and frames are also made from there. As encoder you can use photo – jpeg.
What version of vegas are you using?