I currently have NIS 2010 Ver 17.7.0.12 on a Windows XP PC with only 1 PC license. I would like to "buy" an additional key for a new PC running Windows 7. 2 questions = The HELP section says to buy an additional key - click on PRODUCTS - click on Buy A Key and follow the onscreen instructions - but I don't see that option. Am I not able to purchase another key? Is my version of NIS 2010 compatible with Windows 7?