Windows Update won't find updates for Office 2013?

Hi,

I'm on Windows 7 Enterprise SP1.

I have Office 2013 Professional Plus.

Whenever I check Windows Update for updates, it never seems to bring up updates for Office.  I assume there have been at least some updates to Office 2013 since it was released?

My Windows Update screen tells me:

"You receive updates: For Windows only."

When I click the "Find out more" to get updates for other MS products, all that happens is the IE opens up on a page that says "Use your Start menu to check for updates"

So... how do I get Windows Update to check for updates to Office 2013?  I feel very confused--I mean, shouldn't I be able to set Windows Update to check for updates for a whole host of MS programs (Silverlight, .NET, Office, etc.)?

I've tried changing the Windows Update settings to include other Microsoft products but there's no option to do so when I check.

Any insight would be appreciated! Someone recommended I ask here because I'm on Windows 7 Enterprise.