The apps show up on the App Store, but there is a $19.95 charge.
I purchased the iMac 8 July, 2009 and also purchased iWorks installed by the Apple Store. I believe it came with Snow but i have updated it to 10.75 . It is currently running 10.75.
I made a full clone copy of the hard drive a few days before the Apple Genius cleaned the Hard Drive and reinstalled a new system. Genius thought there may have been a problem with the system after checking my iMac.
I am not able to open iWorks for the clone copy and I have not tried to open it with after booting from the clone because the system may have been the problem. I loaded the entire Hard Drive contents minus the system from the clone. The iMac is working better than before. I was hearing a noise from the iMac as if it were searching or doing some work in the back ground. Eventually the iMac would start and then within minutes it would show the beach ball and freeze up. After the Hard Drive cleaning and new system install the problems seem to have been corrected.