App store wont let me update iphoto

I'm logged into the account that shows I purchased iphoto, but it tells me to log in with the account used to purchase the application every time I click to update it. This is really frustrating. I've tried both of my AppleID accounts and neither will allow me to update the app. Any ideas?

In the app store it's listed under my Purchases, June 15th the date (when I received my new Air). The Update button is there but it just gives me that message when I click it when I log in with either of my IDs.

Any ideas?