I have brought and installed this program but I am unable to bring in photot from iPhote. I get "could not complete request because of a program error". Can anyone help? Thanks!
That's why. You can't do it that way. If you use iPhoto as your photo organizer, you can either set PSE as your external editor and send the photos from iphoto, or export the photos from iphoto to the desktop, edit them in PSE, and import the edited photos as new files.
This is about PSE 9 and an older version of iphoto, so a few details are different, but the general principles are still the same:
In thre current version of iphoto you set it from preferences>advanced:
and it can be a bit challenging to find the right file to set as the editor: