The area is the 2nd one after you enter the portal to the fortress of regrets. The first area, where you meet Deionarra and she says you do better to leave, is alright but when i try to go to teh fortress it loads half way up, then stops.
Does someone know somewhere where I can get AR1201? the file is from cd 4

It's probably only corrupted in your cache. Find your game's install folder, then the cache dir, and delete the AR1201.bif from there. It should be copied anew the next time you run the game.