I hope a Spotlight search will show the hiding place of elusive iPhoto and iMovie, like isteveus suggested, If not, maybe the AppStore can help.
Did your machine come with Lion preinstalled? Then the bundled iLife applications may still be waiting for you to be accepted to your AppleID at the AppStore, or if you previously accepted them, you may be able to download them from the AppStore again without a fee.
- Double-click the App Store icon in the dock.
- Enter your Apple ID and password.
- Click Purchases.
- If you haven't previously accepted your bundled iLife applications within the Mac App Store, you should see your iLife applications appear in the Accept portion of the screen. Click Accept.
- You may be asked for your Apple ID and password once again. Your iLife applications now move to the Purchased section. These applications are part of the software that came with your Lion based computer. Your account will not be charged for them. Click Install to complete installation of your applications.
I checked AppStore and I saw that GarageBand is installed and iPhoto, iMovie apps were waiting for me to be accepted for installing.
However, after I clicked "Accept", there was a message saying that the apps will appear in the updates section. I checked the Update Section but I couldn't see anything.
The solution is to accept the items and then review the user account and unhide the items as they were set in hidden.
ps. perhaps resetting warnings may help.