I just upgraded to Vegas Video 2.0g and Quicktime is not working in Vegas anymore. Reinstalled Quicktime and still ca not read quicktime movies in Vegas.
If I want to save to Quicktime .mov file I get an error "There is no template available for this format"
You should reinstall Quicktime and be sure to select the full installation. Only then will the necessary codec be installed for VV to be able to add .qt or .mov files to your timeline.