I simply took the xplays.viv and xscnario.viv from seushiro gameplay update and put them in my nba live 08 ai folder and it played just fine with no crash and on top of that the gameplay was better!!! I believe these are 07's xplays.viv and xscnario.viv files but they are 100% compatible since 07 and 08 obviously use the same plays. but for some odd reason they run better than the original xplays.viv and xscnario.viv files. i got really good gameplay out of this in 08. This is definitely worth downloading and i will talk to the developers of tup about putting this in tup10.
Heres the link!
http://www.mediafire.com/?vz5wynthwlmAnyways sorry I have no readme so pay close attention.

unzip the rar file and there will be two files

cut both of them

Go to your program files or in my case program files (x86) and find the easports folder and click on it

click nba live 08 folder

go to ai folder and paste in there. Enjoy!!!
Credit: Seushiro