max payne

[aiwa28uk1]

i have max payne cheats i try 2 put them in but 1st i have 2 access the game console and add -developer on the end in the properties menu which i did but if i select ok or apply it comes up with this message
"'c:\programfiles\maxpayne\maxpayne.exe"-developer'
specified in the target box is not valid.make sure the path and filename are correct.
and i cant put the cheats in does any1 know wat the problem is and how 2 solve it thanx