How can i train my baby.

i've tried everything. He was born March of 2006. and he still will not go to the bathroom on time or at the right place (outside). Then he looks at me with those cute eyes and turn his head and I melt

. Cocoa gives me no choice but to have him neutered. Which I don't know if its the right thing to do. but so many has told me that once the surgery is done it will him Cocoa. Then I will be able to train him. Have any suggestion. Now when he doesnt want to do something, he runs under the bed and grolws at us. like if he wants to bite. Help!!!!!

Any advice or suggestions?