First, open ps2dis, if you do not have this, you can download it from the downloads section.

Next, open the game slus/scus that you are hacking, to get the slus/scus you must have a dvd drive, otherwise find an online area to download the slus/scus you want. We will be using the THAW slus.

Next, Invoke Analyzer (At the top of ps2dis there is a button called Analyzer) Wait for it to finish.

Press ctrl + g. It brings up a list. Look for an interesting label. We find "GetSkaterSex"

We see the code is - 004E5460 00000047

We change the 00 to 20 and the last 8 numbers to 00000000.

Testing, the code works! BUT, there is a small problem, when you press start to pause the game the game freezes.
 
RATS! Ok, instead of 00000000 lets try 00000001.
 
This proves effective most of the time. Guess what, same effect, except it doesn't freeze when you press start.

Now, what if 204E5460 didn't work at all, but you are sure this label must effect what you want it to.
 
Go back to the label "GetSkaterSex" once you see 004E5460 00000047 again, press the space bar, there should be a grey line, then press F3 at the top of the keyboard.
 
It takes you to a new label, 0049F6C8 004E5460.
 
Again, make the 00 into a 20 and the last eight numbers all zeros. Test it.
 
In some cases it works when the original code doesn't. If it does work and you can't pause the game without freezing, just make the last 8 numbers 00000001. I hope this helps you