Need help with going to NIS 2010

hello all,

 

Last year i bought Norton Internet secruity 2009 1 user, 3 computers. My subscription is going to be running out in 6 days. So i want to get norton internet secruity 2010. I looked at amazon.co.uk too see how much it costs but i found two internet secrutiy 2010. On one of the two had upgrade on the end of the name. Do i need to buy NIS 2010 upgrade or just NIS 2010. Since i have already got NIS 2009 do i need to buy the upgrade version or NIS 2010. Why is the NIS 2010 cost more. Here are the links to the two NIS 2010.

 

Upgrade version:   http://www.amazon.co.uk/Norton-Internet-Security-2010-Computers/dp/B002KHZE5M/ref=sr_1_2?ie=UTF8&s=software&qid=1261064805&sr=8-2

 

Normal version: http://www.amazon.co.uk/Norton-Internet-Security-2010-Computers/dp/B002M787XG/ref=sr_1_1?ie=UTF8&s=software&qid=1261064805&sr=8-1

 

Which one should i get?