First of all, what exactly did you do with this "disk utility" you mention to resurrect the iBook? Unless you copied stuff over from the iBook to your PB or did some kind of sync operation that did that automatically, your symptoms don't make sense.
Second, iPhoto 4 is part of iLife '04, a separate purchase unless you have a PB introduced this year, in which case it is on the software restore disks. It is not a free download.
Steve