this firefox plugin: https://addons.mozilla.org/en-US/firefox/addon/3006
If you are not using Firefox for an IB, its simple to use and some say more secure.
Download the pluging and it installs to Firefox and then there is an icon on your FF browser just go to the video, then click on that icon and it downloads it for you in the normal way save to etc. Easy to use.
Ok, thank you:)