I am not able to access old Time Machine backups after OS install.

Hi,

I recently did a fresh install of Mountain Lion. The system was getting sluggish from garbage collection, so I wiped it clean and started from scratch. Prior the install, I ran one last backup just in case. I went to restore some of my apps, like iWork '09, and I could not find any backups prior to my install dates. I can see the files when I open up my Time Capsule with Finder. But I cannot restore them using Time Machine.

I tried dragging the iWorks programs over to the Applications folder, but the applications crash (Pages 4.2, Numbers 5.2, and Keynote 2.2). I then tried going into the App Store and reinstalling them from my Purchases list. All of my store bought purchase are there, but the iWork ones. Which is odd, because they were updated from the App Store program after I dragged them over.

The iWork programs I need from the backup. Everything else is backed up in iCloud, iTunes, and the App Store. I really need to get Pages up and running again. Does anyone know what to do? All else is irrelevant.