Installing games to hardrive? Help

[Dev]

I have every file for my game and i patched the xex's for Dev kit it says try again later do i need to put it on a disc?
**EDIT**
Now it is working but when i start a map it is un readable i am doing MW2 is it because it is older?

[Gamecheat]

Then your missing some assets

[Doom]

If you don't have everything in the same folder hierarchy as it was on the ISO, then odds are it's not going to work. Might be the case here.

-Doom