Was the revolution that Old Major started on Animal Farm the same revolution at the end of the story?

No it wasn't the same revolution at the end of the story. By the end of the story the animals had simply traded their human oppressor for an animal oppressor (Napoleon). Really Napoleon is much worse that farmer Jones. At least, with farmer Jones, the animals shared a similar experience. Now the animals are simply divided and terrified.

"Somehow it seemed as though the farm had grown richer without making the animals themselves any richer-except, of course, for the pigs and the dogs....As for the others, their life, so far as they knew, was as it had always been. They were generally hungry, they slept on straw, they drank from the pool, they laboured in the fields; in winter they were troubled by the cold, and in summer by the flies." (Chapter 10)

Okay, you can consider a few more quote. One is where Boxer, their hardest worker, is sent to the butchers when he is injured,

"Some of the animals had noticed that the van which took Boxer away was marked "Horse Slaughterer," and had actually jumped to the conclusion that Boxer was being sent to the knacker's..."

Also, at the end of the novel, the pigs are dressing and acting like humans. THe ultimate irony is when Napoleon announces that Animal farm would be going to it's pre-revolution name of Manor Farm,

"Napoleon, was only now for the first time announcing it-that the name "Animal Farm" had been abolished. Henceforward the farm was to be known as "The Manor Farm"-which, he believed, was its correct and original name. "