Combat Arms Hack Help?

Hello,

I started playing Combat Arms with the aim to use hacks, just for fun, as I already play the call of duty series and battlefield etc.
Basically, I can't seem to get the hacks to work?
I have never attempted to use them before and as far as I know, you just inject and play, though the menu doesn't seem to appear, as far as I know, there doesn't seem to be a button you press to open the menu.
So far I've tried:

[11-16-2012]R3d_L!n3 CA EU Public_mpgh.net
Riptide v1.2_mpgh.net
SimplyDopev1.6_mpgh.net
USSR's Genesis v1.2 NA_mpgh.net

Although, none of these seem to work. Any help would be appreciated.

Cheers.

Have you tried pressing the :Ins: button?