I upgraded a few months ago and all of my paths changed, specifically in my PAL. I managed to figure out all of the new paths BUT the one for the Favorites. The code slightly changed from: http://www.yoursite.com/gallery/showgallery.php?cat=fav
to this: http://www.yoursite.com/gallery/search.php?what=fav
I figured this out by just looking at the nav bar during the process before I got the redirect error. Since I'm not the only one who had this problem, I sure hope that this will help others. It was a very simple change and it sure would have been nice to know.