Could you link me the url? I know that ******* has someone who sort of remade mathack and you can choose what features you want.
If you are putting it in the wrongs spot because of the update then here is where it should go. (sorry i can not give external links)
steam-steamapps-common-CounterStrike Source-cstrike-custom-then you put them in custom. I recommended that you make a separate folder for the hack (ex. Wall Hacks.) The name doesnt matter as long as it is inside the custom folder it should work.
If you have it in the correct spot then just try to get a different mathack. If that doesnt work i wouldnt know the error.
Good Luck