Craig,
in winrar if you click on sheffield.rar
press on tracks
press extract to
another window should pop up...do the following in that window
then go to where you saved the game ...for example...i saved mine in my documents so i could get it easy..so
press my documents...then tracks and then ok it should save...then do exactly the same for data and it should be on the game..it worked for me a minute ago..hope this helps..if you have a problem write a message on here mate.
adz