Need help

I am a newbie about to get 2K11 & Would like to know how do i use the sonics? i have the downloads.. just confused on how to use them in the game.. help thanks

NBA 2K12 is $9.99 right now on Amazon, why are you getting 2K11?
viewtopic.php?f=141&t=83633

Thanks! Because Would i be able to use the 07/08 sonics i've found on here and key arena... and is there a college hoops mod for 2k12? I just need help on how to use it im a newbie and have no idea..