Apparently, that was a lie. I've been messing with it this morning (again) and here's what I just did:
1. clicked on an event (with over 20 photos) and clicked Create>Book.
2. I picked a theme. (wire bound)
3. The book showed up in the layout mode, but with no pictures (shouldn't it create based on the event??). When I clicked on "Photos" and made sure it showed all photos (not just placed ones), there were no pictures showing.
Also, when I view the themes, they just don't seem to be showing correctly. When I view, say, a book, and I scroll through them, instead of getting a cover view, it's like the project is showing an inside page (showing picture placement and placeholder text). Pre-upgrade, I would get a cover view. I'm not sure I'm explaining this right- but there is definitely something odd going on with my themes/projects. I've tried the theme fixes I've found on the forums, but that hasn't helped either.
Also, you say to just delete my old projects and create new ones, but that is the problem- I don't want to have to create new ones for my old projects. Some of them have like 100 pictures that were laid out in a specific way (which, by the way, I can view if I go to the project cache and check out the thumbnails). So it's like my projects are cached within iPhoto, but they just won't show up so I can edit them or reorder (this is the big issue...).
I wish I understood more about how iPhoto creates projects, because they are certainly stored within the iPhoto package contents (under Project Cache) but I just can't take those files and move them to a new iPhoto library and have them pop out the book (or calendar). I'm frustrated because the data is there but I don't know how to extract it to make it work. Or if my iPhoto is just so screwed up there's no hope....
I just tried iPhoto on my Macbook Pro (the issue is on my iMac), and the themes are showing correctly- they show cover flow, not some odd inside page masking as a cover. I think I'll try to open a backup of my library that is stored on my Time Capsule on my MacBook and see if I can't get that one working. Perhaps my Mac is just really messed up....
UPDATE: Ok, just tried to open up the backup copy of my iPhoto library on my Time Capsule with my MacBook. Same issue. Projects show on the sidebar, and if you scroll over them, shows there are pictures within the project, but if you click on the project, I'm now getting the attempt at opening the project, but no pages show up. If I try to change themes, I get the pinwheel of death. The Time Capsule backup is from my iMac (where all my pictures are stored). Apparently, the backup is taking the glitch along with it...