I'm trying to be nice here, but this is going to sound harsh regardless.
The best advice I can give you is that different types of games need different controll schemes, NBA Live is a gamepad game not a mouse and keyboard game. Just as it would be stupid to expect WOW, NWN2, or Company of Heroes to play just as well on a gamepad, it's equaly not ideal to play Live on a keyboard.
Sadly, it seems like only the US and Japan are the only countries where PC gamepads are readily available. The next best option is to check out the post at
http://www.nbaliveforums.com/ftopic42056.php .