Hello and thank you for reading my question.

I"m currently trying to find out how to restore old Naxxramas on our server. It will be a costume Caverns of Time Old Naxxramas instance.

I"ve already tried to import the files from the old core 1.1.2 Mangos but it faild at halfway.
I've succeded in recreating the Naxx tier quests, restored items I"ve also resurected 85+% of the mobs from the old core. But what I miss is the instance itself. Somehow when I creat it, The Current 3.3.5 Naxxramas and the old 1.1.2 Naxxramas is the same. I mean the servers thinks that, the 2 different Naxxramas is the same. When I port into old Naxx sometimes I can appear in the 3.3.5. Naxxramas. I 've checked the port IDs, the map etc.. everything , they are different and still...

Can you give me some ideas how to fix it?

Thank you very much for your reply.

(I will post a few picture later about this matter)