Mac Forums

So for the past hour, ive been trying update my imac, (which i got in september 08') to the os x 10.6.6 update cuz i wanted the new app store on it
i tried to update it by clicking the ? logo, and clicking software update, but the os x update is no where to be found on it!
so i tried it another way by downloading the 10.6 version online, and after it was finished, i clicked on it but a message popped up saying, u need os x 10.6 version to continue....
i was so confused because os x 10.6.6 is what i was trying to download in the first place!!!!

what can i do to upgrade to that version???
thnx in advance