App Store :: Don't Have Access To That Apple ID

I bought this iMac which was purchased new Nov 24th 2011 and I bought it from a friend in January 2012 as well as purchased the applecare. When I did a clean install it removed the iLife bundle and when I try to reinstall it the app store tells me this: These apps cannot be accepted by your Apple ID.These apps were already assigned to another Apple ID, and they will be available in that Apple ID's Purchases list. If you don't have access to that Apple ID and want to receive future updates, you will need to purchase the applications.I would not have done the clean install if I knew that it would take away some of the features but when the Apple employee told me how to do it he didnt tell me that some items would not reinstall without the original Apple ID (not that I blame him).Is there any way that I can get them back on my computer without having to purchase them. I think that since they came with the computer originally that it should be possible.

Info:
iMac, Mac OS X (10.7.3)