1. Preview is working fine at our end for Chrome and IE 7 in latest version of TemplateToaster 7 i.e. Version 188.8.131.5297. Please make sure that you are using the latest version of TemplateToaster 7.
2. It seems like you are using WordPress. You can remove the menu item Blog from WordPress backend, after theme installation: Go to WordPress dashboard -> Appearance -> Menus -> Menu Structure -> Blog -> Edit and click Remove, save changes.
3. To add a Video as Header or Body background, please follow the mentioned steps -> Go to TemplateToaster -> Body/Header -> Video -> Add Video -> browse and add a video.
4. To remove an unwanted Widget Area: Go to TemplateToaster -> Widget Area -> Click on Widget Area -> click the red Cross button at bottom right of the Widget area to remove it.
5. You can check the official documentation link for help: http://kb.templatetoaster.com/
6. We offer free updates for one year with every license, it means you’ll be able to upgrade to all the versions released within one year, after that period you can either update your subscription or continue using your purchased version. Yearly updates renewal(if needed) will cost you 40% of original product price.