[Zope] Guestbook

The guestbook product is broken in 1.10.2. I've 'fixed' it by removing both references to OFS.DocumentHandler (import and class inheritance). Now it's not broken, but it doesn't seem to work! Anytime I enter any data, it says 'data entered' but nothing ever shows up in the data view. Has anyone fixed this? BTW, I couldn't find an author name listed anywhere. --david