and anyone know where i can change that?i couldnt find
Two is better if you are trying to steal the coins away, 6 is better if you are trying to prevent people from stealing those coins.
but litecoin has also 3 confirms or? it will be a scrypt coin
You will not find it anywhere because it is simply a convention.
When receiving bitcoins, some people consider the transaction complete with no confirmations, some wait for at least 1 confirmation, and for larger amounts, many wait for at least 3 confirmations. Six confirmations is considered super-safe.