Does your Opera have Bookmarks tab? Open it and show me what it says.
I should tell you that I'm playing a guessing game based on my Firefox though.
Err well, I'm using Opera Next (or attempting to) but I don't use the older version. If that is in anyway helpful at all. "Stash" kinda acts like bookmark, but it provides no import/export options at all.
I'm having a super slow startup time on Firefox, that's what's putting me off, otherwise I'm going back to it arrrgghh.