Lion OS: iPhoto doesn't open after data restore.

Hi!

I had snow leopard preinstalled on my macbook which i bought in june2011.

Later got a free upgrade to Lion OS from apple. This i have downloaded from app store.

Recently i had to format my disk.

After restoring data from the backup disk (timemachine) I'm unable to access my iPhoto library.

Currently it shows that iphoto is 9.15 and since i have created my library using later version of iphoto, iphoto cannot open my photo library.

The appstore shows there are upgrades available for iphoto, imovie and garageband but im unable to ugrade them.

It says i have to 'buy' from my account!!

Buy? Why?

Pls Help!

Cheers!

Chan Dan Su