HELP NEEDED!

[diggy]

i downloaded the 16 rar. files for the official nba2k9 (v1.1 nodvd) from nba-2k.com in order to use textmod. only problem is when i go to unzip them it says " please insert disk containing...". i'm very anxious to play with the new draft update so if anyone can help i would truly be forever indebted (not really, but you get my drift). seriously though can anyone help me with this PLEASE.