[pakrat2k2]

read step 3 AGAIN... you dont have the game installed in

c\users\administrator\desktop\dirt3\yourgameinstal lationpath\*"

works 100%. you dont follow instructions very well..

1. you installed game
2. where did you install game ?
3. edit the ISS script ( which is NOT extracted to gamefolder )
IF you installed game in default location it should be C:\Program Files (x86)\Codemasters\DiRT 3\

so the first line in the ISS script would be:
#define SourcePath 'C:\Program Files (x86)\Codemasters\DiRT 3\'
save the script file & compile it.

easy as pie.