I know alot of people get CS1.6 cheats from tobys, so you could try that, only 75% won't work as Valve made the move on removed D3D from CS1.6 so its harder to create hacks when it comes to the OpenGL and Software versions of the game, but I'm sure you can find one.
I gurantee you'll get one if you pay for it but not everyone has cash to splash out on hacks, try searching around the internet, I'm sure you'll stumble upon something eventually.