Can I update Trueflow 6.03 with ver.7.0. If yes, what is the procedure?
Yes, you can update the application to the latest version, but you will have to contact the developer because the update is not available for public user. I have accessed its official website and couldn't find an update to download. Use the available inquiry forms to send a request to the developers.
Contact page: http://www.screen.co.jp/eng/top/contact.html