How many PCs can NIS 2009 be used on?

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On this website here

http://shop.symantecstore.com/store/symnahho/en_US/ContentTheme/ThemeID.1795800/pbPage.NIS09wide?ipd=InterstitialChall&ipln=true

 

it says for $59.99, NIS 2009 can be used on up to 3 PCs.

I just purchased this product and now in my Norton account it says I can use it on up to one PC.

 

Which is correct?