I don't personally ever use cracks or warez, mostly because those places are filled with viruses and trojans. But for those who do, a bit of a warning...
I have learned any attempt to change or alter XAimer (the strategy used to crack a program) will make it aim horribly or randomly change its behavior. This makes cracking XAimer particularly annoying because you never know if a crack is working or if XAimer is intentionally aiming poorly for you.
In fact, I've been able to confirm every crack available causes the program to aim randomly in different directions in less than 1 week. Most cracks cause XAimer to be unusable immediately.
It seems the only certain way to know the aiming is perfect is to use the official version of the Yahoo Pool auto aimer.