The full quote (from Stanhope, there may well be other versions) is,

"Marshal Beresford had not as much as myself the habit of responsibility and chief command, nor of course, in the same degree, the confidence of the troops. He therefore could not do so much. I remember that he wrote me word that he was delighted I was coming, that he could not stand the slaughter about him and the vast responsibility. His letter was quite in a desponding tone. it was brought me next day, I think, by General Arbuthnot when I was at dinner at Elvas, and I said directly, this won't do, write me down a victory. The despatch was altered accordingly. Afterwards they grew very proud of the battle, and with full reason. There is no doubt they had completely got the better of Soult."

It was a question of altering the tone of the despatch rather than the facts. Are you saying Albuera was not an Allied victory?

Susan