Lost Photos when updating iPhoto after copying hard drive to new MacBook Pro

[arivas]

Hi, a few days ago I copied the entire hard drive of my old MacBook Pro to a new one, and then (unfortunately) erased the old one after seeing that the copy (apparently) had worked fine

I also did a SW update and in addition to the OSX update and many more apps, I updated iPhoto to the latest version

When I looked at the Pictures Icon I saw that my entire previous library had vanished, and when I opened iPhoto it did not list the old library, and asked me if I wanted to create a new one

Is there some way to recover the lost files, or undo the iPhoto update?

Thanks in advance for any tips!!!!