Ok, I read in some other question asked that you can go back to Skuldafn playing Skyrim on PC by writing something in the console, but I play Skyrim on my PS3 console.
I need to go back because a draugr thu 'umed my arse into the portal before I was able to kill Nahkriin and take his mask. Can I do it, or am I screwed? Am I now not able able to unlock that other mask in Labyrinthian?