I just screamed out loud in joy when the fix I found online tonight worked. It's related to the Creative sound cards. I'll just paste what someone else wrote because I have a season to play! To give credit where it's due, it was posted by alwayz0npoint on this forum in 07. Not sure why no one else found this.
I have figured out the problem on my machine. I too tried all of the things that were mention above and still failed.The solution, at least for my system, was to disable CTHELPER.exe and CTXFIHLP.exe in msconfig. Apparently there is a conflict between these two Creative driver services and NBALive 2007 causing the game to crash at the Quit Game point. Please try this out and get back to me and let me know what happends. Thanks,Hope i helped.