Help updating parents iLife Apps

My parents have a 2012 Mac Mini. It does NOT have a CD/DVD/super drive.
They have super-slow DSL...like 1Mbps Top Speed.

I finally got them an Apple ID recently so I could update them to Mavericks (that only took 12+ hours to download)

I came back the other day to update their iLife apps...iPhoto, iMovie, etc. as the Mac App Store said I had updates. When I went to enter their Apple ID my nephew's Apple ID was there. I switched it to theirs and said the apps were associated with my nephews AppleID.

I restarted the Mac and tried again and still had the same result. I tried to dump iPhoto, etc. into the trash (didn't delete them) and when I went into the Mac App Store it said I could PURCHASE the Apps.

What is going on? Their Mac came with the apps and they should be able to update them, right? I was able to update my iLife apps to the most current versions.

Please help me out here.
Thanks in advance!

Dave Braine said:

Did they buy the Mini new, or did they get it from your nephew?

Click to expand...

They bought it new...actually my siblings and I bought it for them...New from Amazon.

I think my nephew has made a couple purchases through iTunes. I should have checked the purchases tab for the Mac App Store.

I know they had updates for iPhoto and iLife for a while but i was trying to set them with an Apple ID without linking a Credit Card. so that took a while to figure out how. (was really easy once i knew)