Slideshows not working after transferring from old Mac Book Pro

Both my Albums and Slideshows were carried over when I moved the photos from the old Mac Book to the new one. They are being played from the slideshow folder with music and Ken Burns effects which I originally created on the old Mac Book. My identical iTunes library was moved over to the new computer also.

How did I move them? Not with the migration assistant. Just by dragging the photos into the new iPhoto window and copying them. Could this be the problem?

I used the last method. I copied the iPhoto Library to an external hard drive and then on to the new machine. It SEEMED to work perfecly. All the photos showed up, all the albums and slideshows were present in the left column. I can access the photos from the albums but the slideshows don't work properly. Most of the pictures don't play (they are blank) and there is none of the music or Ken Burns effects that I had originally. I deleted all the photos and tried the same process a second time but still the same result. The second time, I used the iPhoto Updater and followed the instructions but the result was the same. Again, I have no problem creating new slideshows or even re-doing the old slideshows but I would rather not go through that process. I have over 6,000 photos and 40 slideshows. Any more suggestions?

I did the above 4 steps twice and it's still the same. Any more suggestions?

I don't understand the question? Format?

Mac OS Extended It is a LaCie EHD

It does not say (journaled) Just Mc OS Extended.. What is the difference and how would I change it?