Numbers is NOT updating?

I have Numbers, Keynote, and Pages and all of them have been updated to the latest except that Numbers won't update as far as I can tell.

I'm running Numbers 09 Version 2.3.

I have a document that I created recently (before Numbers was updated) and now it won't open. Because whenever I try to open it it says that I need a newer version of Numbers to open this spreadsheet.

I'm not sure what to do but I believe the most recent version is Version 3.0.1

However when I go the the App Store and select software update it says that I have 3.0.1 but it doesn't or hasn't seemed to update to the version even though I just downloaded it.

Ideas?

 

That did it, thanks.

It's weird because I get updates for Pages, Numbers and Keynote all the time...I mean a lot.