cod4 rank cheat

does anyone know a site that has a workin cod4 rank cheat??
i used http://www.d3scene.com/forum/call-duty-4-hacks/9801-hack-cod-4-level-55-instant-hack.html before and it worked that was few months ago
i tried using it again but its not workin now
Answer #1
that doesnt have any effect online?
Answer #2
nvm now i just did it
works
im now ranked 55
heres step by step guide youtube vid
http://www.youtube.com/watch?v=tyz6Qn9ruds
that doesnt have any effect online?
yes it does have effect online all weapons n everything else
Answer #3
then i gues its a no no to ask about it here.