"You can't open the application App Store because it might be damaged or incomplete." Help?

I'm not exactly sure what happened but for some reason my App Store won't open anymore. Every time I try the message "You can't open the application App Store because it might be damaged or broken" pops up. And for some reason iPhoto is completely missing from my Macbook today as well. How do I get these two back and in working condition again??

I'm going by your profile v10.6.8
Installing the Mac OS X 10.6.8 Update Combo will reinstall the App Store for you.
Restart your Mac after the combo is installed.
It's ok to do this even though you are already running v10.6.8
If necessary, you can re download iPhoto.
Downloading past purchases from the App Store, iBookstore, and iTunes Store
message edited by cs

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    Message was edited by: mrivmriv
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    Message was edited by: mrivmriv

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