volumn license installation proble

We have purchased End Note X2 - 16 licnese and downloaded the installaer from http://www.endnote.com/msi/  but when entering product key it is showing "you did not enter a product key on your new copy of  Endnote.  Can sombody help on this

I don’t do this, but a google revealed this FAQ:

http://www.endnote.com/msi/enmsi.asp