I keep asking how to transfer my favourites from Windows to Ubuntu Bookmarks and no-one seems to be able to tell me in simple language. Videos in web pages don't play it's just a black space. How can I boot Ubuntu as my default page without losing the option to go to Windows.
If you want to transfer your bookmarks from Internet Explorer or something, I don't know any automated way. (But you can import them to FireFox / Chrome first.) If you were using FireFox / Chrome, bookmarks can be synced across different installs, so this has nothing to do with your Operation System.
Flash Video ? If so, install Flash Player. You can find it in the Software Center. (No command line input needed.)
Which kind of Ubuntu install did you use ? If it's Wubi, just press F8 to call the boot list.