Resize flash movie

Hi

I’d like to automatically resize a Flash 5 movie so it opens at 600*800px - you can see an example of this here:

http://www.flashkit.com/movies/Games…6121/index.php

The Flash movie size is 340*185px - but the site offers the option to open the game at different screen sizes - with the game automatically resizing to fit the screen size chosen.

Any ideas on the best way to do this?

Thanx

Dirk