I'm facing the same problem, Facebook isn't working anymore at all and the new Opera 20+ is a nightmare concerning bookmarks. I don't want my 345 booksmark in the speed dial window, I don't want them in root folders in the bookmark bar. I want the old bookmark system back, because that was really nice for finding stuff.
If there is a way to teach Opera 22 a) how to import my bookmarks in a way that I don't have to sort through them all again and b) display them in an easy to use way, I might be convinced to use O22. This way, I'm switching to Firefox or Chromium, because the new Opera is blergh.