NBA 2k13 for PS3 help?

Just picked up NBA 2K13 for PS3. This is the first NBA 2k game I've played. It looks and plays great, but I'm having a hard time figuring things out. The menu system is terrible with little explanation as to what game modes mean. Game play is also pretty difficult. I've gone through the training mode tutorials and have learned many of the moves, but is there anywhere that explains other elements of game play, such as what the shot feedback indicator actually means or an explanation of the signature moves? Any help or tips for a beginner would be greatly appreciated.

Thanks!