Okey there are so mutch ppl nagging becouse they are just noobs!
So for al noobs:
Fist of all. You nead to download a
HACK, So go to dave's topic (
Klick here ), and download it. Doesn't matter if you choose Zip or Rar, just pick one.
Now if you
DON'T have a program to
extract them, downloa done ! I use
winRar
This is the link >
WinRAR - Free software downloads and reviews - CNET Download.com
Now you have The Hack, And the Extract program.
Extract the hack, if you have only winrar, it wil auto open in winrar if you klick on it (it does so on my com)
It probedly wil look like this
Now you can
EXTRACT them were evver you want, klick on them
and drag them in to a map, or on you're deskop.
If you do that whit dave's hack i could look like this
If you're done whit that, klick on the one whit the M or on other hacks the
.EXE and run it it, on vista run as admin.
A little window wil appear whit MPGH.net and Close injector.
Right now you
don't wanne do enything whit it, just let it open.
Now open Crossfire, close the pop-up and PLAY ! On Vista run
crossfire alsow as admin !!
En now you're done whit dave's hack !
But not al hacks are like that soem ahcks you nead to inject by yourself.
If you donload the hack of James (aimbot)
Here is it
you open it again whit winRar. But now you nead a injector i use skyz, i wil atach it
Now this is what you do, you take the aimbot and the menu, and you put it on you're deskop or whatevver you like !
Open
skyz (on vista run as admin) and type in the first thing
crossfire.exe
in the second one, you browse for the
aimbot and menu. In the bottom it wil say waiting for program to start, that is crossfire.
Now open crossfire ( on vista run as admin ) and the injector wil say;
succesfully injected 
Now have fun whit
killing noobs !
Gr. C.
Credits to:
C4Vendetta - writing al the stuff
ImageShack - Picures 

***James***- the aimbot hack
Dave84311 - The MPGH pub hack