The one folder does not contain all of the statements I am afraid, even though it is 170 odd pages. The following also include various statements and they come to at least another 170 pages. There are probably more. So if you are after a complete set of everything it's going to be pretty expensive. Good to have though!
PS If you can get hold of Harold Raugh's wonderful bibliography of the Anglo Zulu War it lists all of the relevant documents held at Kew with their reference numbers and titles.