you might not be seeing that you have a double bar and not a single bar xll? that happens to me
Edit: I'm using the same alg as you, so It does work.. but before you do the alg make sure its a single bar on top and corners opposite on the bottom... also, I get the same upside down t-perm when i mess up with that alg and use it on the double bar, so I'm almost positive thats whats happening.. but I just learned ortega yesterday so I could be horribly wrong