http://www.archiveteam.org/index.php?title=My_Opera has a lot of information on how to recover most of your public data (blog posts, photo albums, favorites, old forum posts, etc.) Keep in mind that it's possible we weren't able to get a copy of your data in time if it was uploaded AFTER your profile had already been saved; we also missed about 3988 profiles out of the 16 million. Of course, private data (emails, files that weren't publicly shared, etc.) were not saved by ArchiveTeam.
Edit: In your case, take a look at: