Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Hank,
Basically, you need to activate the product. The following should help you do that.
If using Office 2010, see: http://support.microsoft.com/kb/2121216.
If using Office 2007, see: http://support.microsoft.com/kb/927921.
Good luck!