I am using this on SAS: 4. I have the trainer installed and the pre-reqs. When I click on a hack and apply hack, it says it worked, but it doesn't. Am I doing something wrong?

Try enabling the speedhack, more often it fixes that problem.

Did you apply the hack when you pressed play or anything else to the game?

Usually it will say it's hacked but it won't show the effects if you did something to the game.

However, if you apply the hack when the game loaded everything else and haven't touched anything let alone the game itself then it should work

Perhaps, and sometimes happens to me. You need to apply hacks before pressing start or some requiremente needed before applying hacks.
Check that...

He got banned for creating another thread about 8bp hacks not working.  Fucking morons man...