You don't need to mark as safe all the emails you want to keep - it maybe you get one email from a shop (online receipt) for example - you don't need to mark these as safe but you can mark as 'not junk' or even make a new folder and copy the emails to this new folder - I have 10 people in my 'safe list' these are just friends and family who I get regular emails from.
Ok now to the answer to the question - this link will help you
http://email.about.com/od/hotmailtips/qt/et123104.htm
PC Expert, December 2008