Instructions:Unlimited online backup space for all your files. Normally £44.99 but 50% off for the first year brings the price down to £22.49.
Not much else to say really. Free trial available as well for 30 days.
Details of how it all works - http://uk.trendmicro.com/uk/products/personal/safesync-solution/video/index.html
Application is supported on Windows and Mac. Files can be accessed via browser as well.