Are you sure about the update I've been using the Trainer all day 10/08/2011. Not all the options just option 6 mega items option 4 money and options 2&3 mega ammo and no reload. Maybe I did not get the update because I was playing the game at that time?
Since I've been using cvarAdd g_permagodmode 1 and cvarAdd g_permainfiniteammo 1 I have had no crashes. Video is still lags some and audio is off a bit. I do not think the infinite ammo one is working tested it and ran myself out of ammo on my personal weapons.