No, I'm afraid you misunderstood. All episodes were dubbed into Swedish around 1989 - 1990, but the first 11 episodes were then re-dubbed with other voice talents cirka 2005. The rest of the episodes got to keep the earlier dub. I suppose only Disney would be able to explain the logic behind that...

And to complicate things even further, episodes 1 - 11 and episodes 12 and forward have different dubs with different voice talents; so regardless of which dub of episodes 1 - 11 it's impossible to Watch all episodes with the same voices.

I own the Scandinavian DVD release containing Boo! To You Too! Winnie the Pooh, and of course I'd be happy to provide a copy of it. It was a while since I watched it though, so I'd have to re-check the quality and similar.