The subject says it. I have plenty of highlighted passages in various books in my library, and I can find the highlights just fine on my PC desktop, but on the iPad app, I can't do it. Is there something you have to do first in order to find your highlights?
Also, there seems to be no way to search in a single book. You can search either in the Bible or your entire library, but in those cases you end up with way too many results.