As regards bitaddress I read this in a thread mentioned above 'the zip version in github is :v3.3.0 remove support for IE8'....I don't even know what this means but the version showing now is 3.3.0.......will I have any problems?
IE8 refers to browser called "Internet Explorer" major version 8, which available for Windows XP to Windows 7. Meanwhile v3.3.0 refers to version of the bitaddress. So you will not face problem if you don't use that browser.